RE: Random Peppering of Comment Upvotes... and Time Zones and Changing Patterns

I wish I could answer this your question;

when was the last time you gave an upvote to a really good comment on someone else's post, just because it was "really good?"

For my case, I can't remember when someone left a comment on my post. This will make it easier for thinking that my posts are not engaging... I disagree since there are lurking factors....