Now that this PTB is scrapped, please consider scrapping the previous PTB as well

God please give me old Streetwise back

Keys, no.

Maps just need some old functions readded.

Streetwise half yes. The new effect is nice, but I liked the old one too.

Franklins yes, but revert it to the version that caused a chunk of progress to be lost right away.

Map Offerings will likely never get removed because of map achievements.

And Fog Vials could be really fun if not for the overtly big nerfs.

Nobody used keys to track teammates because they were bad at it.

That's always been their biggest obvious use case: Track players, to contrast maps tracking objects.

The old keys actually had okay numbers for tracking teammates if you leaned in: Referencing the old wiki, the Skeleton Key with the Gold Token addon gave you 48m of aura reading on teammates for a potential total of 30 seconds. Okay numbers, but requires an iridescent item and a green addon.

Contrast that to new keys. Bringing a Skeleton Key now, with no additional addon support, gives you 64m of teammate aura reading for a potential total of 60 seconds. Right off the bat, those are significantly better numbers.
Additionally, the new key system has passive use, meaning you can pop the key and gain the effect while doing other actions instead of having to micromanage, and means the likelihood of wasting any charges is substantially lower.
On top of that, the Skeleton Key is now a blue item, not an iridescent, and no longer requires any addons to function in this regard so it's much cheaper to access.
On top of that, because it no longer requires addons to function, it means a key you get from a chest actually does something worthwhile, which while only mildly relevant to the overall strength of the item definitely means it occupies a much healthier space within the game.

There's no way around the fact that keys got substantially better at their actual job overall. They also got a new job as well, which is nice; I've used the new keys for chest builds and while it's never going to be meta, it's just strong enough to mess around with for fun without feeling like you're throwing. Actually an area where new Streetwise shines, funnily enough.

I would be hesitant to say things like "Nobody likes [X]" when there are people directly saying they do in fact like [X]. It's not less of a criticism for you to just say you don't like it and make a case for why you feel that way.

Of course I do?

Why wouldn't I prefer the stronger, easier to use, more effective system?

That would make no sense for their use case and wouldn't improve the item in any way, so no.

The items aren't all the same, some of them benefit from specific changes more than others do. I mean hell, how would you apply this charge system to medkits? It wouldn't make any sense.

…No.

That change improved keys because of how that item functions. Larger overall uptime + less chance of wasting any charges + the ability to perform other actions while still reading auras is just an upgrade, it only make keys better.

That change… sorta could improve maps if that rework were better, but there are other problems there. Same general principle behind how that could help maps if they were a bit better designed overall.

The way medkits function, it's hard to imagine how you would even implement such a change without stopping the item from doing what it currently does. I genuinely can't comment on this one because there's no obvious coherent way you'd make this change.
For toolboxes you could do it - consume a charge to get repair speed - but that would just make the item's use case weaker, not stronger. There's no benefit to toolboxes working that way like there is for keys and potentially maps. It also wouldn't really work for sabotages, so there's another logistical concern there like there is with medkits.
Ditto the first part for flashlights - you could maybe do it, but why? What's the benefit? Keys are materially improved by this change for specific observable reasons, and those reasons don't apply to other items.

Let me turn the question around on you - why do you think this new system makes keys worse? What's the material effect you think is harming keys?

The thing about that is, while you're spending 17% of your charges on one use, you have more uses and the chances of not seeing someone went down, not up.

Remember, a really hefty range increase and a ten-second linger were added alongside this change. There is less chance of you wasting your charge for nothing, that's part of what makes this system so much better for keys.

Genuinely, have you tried using these new keys across a few trials? The ability you have to track your teammates with them is so much higher than old keys it's insane. There ISN'T an appreciable risk of you wasting charges for nothing with new keys, certainly not more so than old keys.

Yes, you could bring Bond, but if you bring keys that frees up your perk slots for more useful effects. That's how it's supposed to work; the choices rival each other but use different loadout slots. Before, keys weren't worth the item slot for this purpose, and now they are.

I'm not going to argue about maps, I don't like that rework and I think the item should get its core use cases back. Keys, though, are not in the same boat: They got better, not worse.
I didn't use keys very much before, but that's not because I didn't care about them. They just weren't worth it without the Blood Amber. Now they are, so now I'm really pleased I don't need to invest nearly as much for a worthwhile effect + the effect I do get is significantly better. I am a map lover and I don't like that rework, though, to be clear.