At the bottom of posts, there is a thumbs up/like button if someone "likes" something you posted, they can do that. Years ago, folks used to just say "+1", but the like button is easier.
I'm unsure if the old post count and "likes" are going to transfer over or not? That is yet to be seen.
Prior to having zenforo, the board used "rep points", which were also not transferred over during a prior switch.
Myself, those aren't important to me because the good info still exists. It's just a little "rewards system" for good info.
There have been members here who have been banned. There have been several actually. But we try not to do that unless someone just really needs to find somewhere else to spend their time and stop disrupting everyone here.
Don't stress about getting banned. You're in very good standing here Ernst and have done nothing to even raise an eyebrow. For that, thank you!
As for the "lurker" status. That's something else that I don't know about. Zenforo (the company who makes this software) is supposed to be looking into that as to whether it will transfer over or not.