In the past I did find it fun to edit several topics, while Wikipedia needed 6 mods to undo my editing. At a certain time the mods where undoing other moderator's modifications!
That was fun, but I hardly visit wikipedia anymore these days.
If I need to know something, I prefer going to more specialized websites to get my info.
The last 3 times I added some (beneficial) addition to Wikipedia even that was undone by a mod who seem like not many people agree with, and who loves deleting other people's work.
I stopped giving any input to wikipedia at all. What you may think is important, is not for another. In the end you just waste your time editing things another undoes.