No way to fix incorrect features???
Assuming you have a TIGER imported road, 20 miles long between two towns, but with very rough/therefore incorrect aligment. You are going to adjust the geometry of the low quality nodes instead of deleting the entire 20 mile road. 
And that's called "fixing".

If railway=abandoned ways are glued to other features like roads or boundaries, yes, this is incorrect mapping practice and should be fixed - by ungluing, and not just deleting.

DWG said one sentence: "don't map nonexisting features", and I generally agree with that, but again, we're talking about clearly existing features.

If you are unwilling to discuss controversial changes, then don't do them in the first place, and if you do but don't discuss anything, they will get reverted. So please engage with the changesets where I commented.