Is it tolerated to upvote one's own comments using a separate account?
45826
How should sockpuppets be handled on Stack Exchange?
81081
Can a single user post two answers for one question?
18805
Ripping off answers from comments
40149
Do I have to give attribution to SO when using my own content elsewhere?
144474
Serial Up-voting and Reputation Cap
147115
Disallow downvoting other answers if I've posted my own
134870
Different implementation of downvoting: require comments
81887
If I downvote an answer, is the lost reputation visible to others in my profile?
144201
Can I place  in a comment?
155996
Auto-upvote comment during Low Quality review when selecting same reason
56360
What is the point of upvoted comments
45799
Right way to handle obsolete comments when some of them are mine?
145881
Is it ok to use an alternate account while my main user is restricted?
122242
Is it possible using the SE API to get a list of another user's posts that I have upvoted?
61716
For protected questions, require local reputation to comment
57159
May a diamond moderator utilize a second, non-diamond account e.g. to cast regular close votes?
2309
Is reputation transfer possible?