I believe the main problem is ownership. Editors feel they own "their" article, don't want other people outside their friend group in the history, and revert clear improvements by newcomers.

That happened to me, and after I re-added it once with expanded sources and explanation, a friend of the reverter swooped in, said it amounts to "vandalism", and... I will never contribute anything again.

Wikipedia doesn't care. Sure, there are "processes" to appeal. Which are so convoluted and inscrutable that they seem designed to protect incumbents and people with too much time.

Edit: oh, and when you're using "just an IP" as an insult, you should re-examine your life choices.