You can draw many lessons from prepping forums like this one. I don't mean the contents of members posts, but the history of the forum itself.

It is essentially a group of like minded people. You can watch a few groups ove a period of time, and notice people come & go, people who fight and leave, and forums that are deserted and left with only a few posts a month ... etc.

I have seen many forums divided in half over insignificant issues.
Same, or more, can happen in real-life groups.