The first time I heard about Wikipedia I was interested in what it was. I looked into it and learned a little more about it, and liked the idea. I also noticed that it was a very good source of what you could call "trival" knowledge, such as more than you may ever want to know about Lightsabers in Star Wars. But I never bothered with wanting to edit anything, simply because I knew I didn't know enough about any one topic to start an article, and what I did know already had articles created, with nothing I could add.
Eventually, I realized I could continue a hobby I enjoy, fixing errors in grammar, linking pages together where they could be, so I made myself an account (Under a different username) and began occasionally fixing errors I found in whatever I felt like looking up at the time.
At one point, I somehow came across Lir's story of being blocked and was instantly fascinated. I found this site and read through some of the current threads with increasing interest. It struck me that some people who casually/rarely edit/read Wikipedia would never even know it was going on.
After reading through a few threads, I gave some thought to the general appearance of abusive administrators, and what might be done to fix the problem. And it may come across as pessimistic, I think that to some degree, abusive behavior by those in power will always be a problem. Even if you removed the worst examples, there may be someone else who comes along who develops a pattern of misusing what they have available to them. I don't really get a feel of "Fix the issues" from Wikipedia, in reading through here. And to me there's no hope for a project that refuses to see its own flaws.