TBH I don't comment on too many other people's posts, something I could do more of, but it certainly has to spark my interest for that.
I think i maybe just vote comments out of habit, I need to think about whether it's worth it. Probably the main reason I do is because it's an easy way of using up voting power. These days I'm finding I'm voting what i'd call mundane content from people who I know keep it powered up, there's so little worth my vote!
Hence voting comments.
On that note it's now 9.00 a.m. my working day beckons!
LOL oh the joys of the 9-5