To be clear, Mary Sue refers to characters that are not just abnormally 'perfect' in most regards, but are also looked up upon by the rest of the cast as being so perfect.
Characters that are ONLY the former but are otherwise accosted by other characters are merely superheroes and, in RP, are usually godmoding (yes, godmoding with one 'd', because I grew up with video games where 'god mode' was a thing and I will always read it that way). I don't think it's actually possible to accurately refer to an RP character as a 'Mary Sue' outside of one-shot stories where NPCs are written in.
I, personally, have never referred to someone else's character as a 'Mary Sue', instead preferring more specific criticisms wherever applicable. Then again, I rarely comment on other peoples' characters to begin with...
Characters that are ONLY the former but are otherwise accosted by other characters are merely superheroes and, in RP, are usually godmoding (yes, godmoding with one 'd', because I grew up with video games where 'god mode' was a thing and I will always read it that way). I don't think it's actually possible to accurately refer to an RP character as a 'Mary Sue' outside of one-shot stories where NPCs are written in.
I, personally, have never referred to someone else's character as a 'Mary Sue', instead preferring more specific criticisms wherever applicable. Then again, I rarely comment on other peoples' characters to begin with...