> Overall I learned for future to just not do this again at all. It just doesn't help on these launch posts anyway, the amount of interest they need to actually get on the front page and stay there is way above what just a handful of friends upvoting or commenting can do for you.

There's also weighting in effect, not all upvotes are the same (upvotes from the same IP don't count at all, and upvotes from long-time accounts — like yours? — count extra). I'd imagine upvotes from new accounts barely count, if at all.