You mean like marking a post? Never done it just because I "could". Only ever done it if I actually wanted that shit gone, like it was spam or spoilers.
Irl no. I'm no rat. Never took what someone said to me and turned it against them. I assume if you tell me something, you wouldn't have told me if you wanted me to use it against you, and I respect that you could have just not told me in the first place.
https://www.youtube.com/watch?v=5C_Wrt6pNSw