I was away on business when PP was in late beta and when it launched, came back a couple of days after it went live in fact, so after reading up on the concept on my off-hours I signed up with Li Yong-Rui. It felt right at the time. Then it started to dawn on me just how much I would have to bend over backwards to get the 200% bonus to exploration data, and how it would be useless if I didn't take some risks by flying around with it.
So I took the half day cooldown with stride and went with Arissa Lavigny-Duval and fiddled around with what you could do within the PP framework, which also gave me a good vibe. However after struggling a bit with why my motivation to sign in during the weekend for an extended session was dwindling, I came to the conclusion that PP simply wasn't my cup of tea. It didn't taste of Oolong, at all. So I unpledged.
I have not relocated more than I usually do when in colonized space, as I tend to wander around quite a bit. But I am avoiding Zemina Torval's area of influence, the miner in me carries a grudge against her passive, unless I'm just misunderstanding that particular effect.
Not noting any particular benefits, but no drawbacks either to be honest. Of course, you can purchase ships and components cheaper in some places, but other than that it feels like a status quo.
An update launched, there were new ships, a few bugfixes and a few bugs, some new feature was added and I just carried on carrying on. I suppose community goals that end with ship discounts have gone through the Cambrian Ordovician extinction-event though, with the now permanent passive discounts. But that's just speculation on my part.
Fly safe.