Just to say that this is not my experience. Have made highly contentious edits and created entirely new articles on topics from Hoplomachus through Corpse Paint to planning law in the UK. None of my good edits have been reverted, but some of my poor edits have been manually reverted after review by a human editor.

For a whie there were some wikiprojects (Vandal Patrol; Rollback; twinkle) and some of the people involved were very aggressive in making reverts.

Those problems were recognised and so things are a bit better now, but still.