I haven't been active on this site until recent months so I'm not accoustomed yet. But I have been in Stack Overflow main site for a few years and I have not experienced there anything like this.
A few weeks back I noticed that some comments were being deleted for no apparently reason. They contained no bad language nor spam. They belong to people just talking politely about the topics established in the question or some of the answers.
Today I suggested an edit to this question Can I say "I have been dedicated my work" ? (edit link). My edit was rejected but just below a moderator applied almost all my suggestions to the post. I suggested minor grammatical improvements (replace "i" by "I", replace "sentense" by "sentence", remove extra blank spaces, ...) AND include the particle "to" in the title.
OP was not asking if the complete expression was syntactically correct. Let me quote
there any other appropriate sentense? I want to focus on " I did it for a long time, until now"
So I interpreted that the missing "to" was just a typo. It was not relevant to the question. But the rewiewers' opinion was not the same so she rejected my edit.
Well, they seem to be native English speakers and they got more reputation. Fine. And now my questions ...
Is there any written rule [Please include link] about arbitrarily deleting comments in this site?
Do all reviewers know that there is an option to improve an edit? If there are ten suggestions and nine are valid (ten, in my opinion), why do anyone have to reject all the modifications?
EDITED: Ey, I've just remembered why I linked these two subjects. I wrote a comment addressing the editor because she has left some blank spaces that I suggested to remove. Can you see my comment? ;-) Blanks are still there.