I hate to rant off a full "design" for this, but I find it an interesting challenge to balance the negative with the positive with this idea.
First, we must be consistent with incorrectly spelling the word and adding an accent mark somewhere. I would call it it "håight."
If implemented, perhaps it could be extremely obscured from view and even then vaguely detailed. It could be made as a tooltip over the "liēked this" text (thus, requiring at least one liēk) that only says how many people håighted it (or maybe not listing who håighted it would be a bad idea).