It's been my experience recently that there are a lot more downvotes, some of them seemingly random; I hope we haven't enter redditesque territory, where people downvote everything except their own post, giving themselves an effective initial +2 score. For the record, I've +1 your original comment, even though I disagree with it:

SQLite is awesome, really really awesome. It is also not a good example -- part of the reason Redis works so well is that it capitalizes on Unix process management (in a way that was apparently intended when Unix process management was evolved, but has for some reason been unpopular and long forgotten). SQLite was never in that position.