Thank-you so much for this comment. It almost made me cry when I realised, in true face-palm style, that I forgot to filter out upvotes on comments.

I thanks the steemit devs for making posts appear in the blockchain as a comment! I shouldn't have to think about this, but maybe there's a good reason they do this.

In any case, everything is up to date. You were 100% correct. @robinhoodwhale doesn't upvote in the first 15 minutes at all.

I'm glad there are people who think a bit when they read my posts. I make mistakes like anyone else, and I'd rather they be caught than mislead people.