Thanks for the reply. It is an interesting point of discussion. It does say that if you vote more than 20 times that the weight of your vote goes down, so the point of my article was that you could maximize 'spreading the love' if you spent 100% of your upvoting on other people's posts.

I've actually found another situation where it seems OK/good to upvote yourself, and that is if you aren't going to have time to read and find 20 other good pieces of content to vote on within 24 hours. In that case, your remaining votes would be 'wasted' so you might as well upvote yourself if you think it is good content.