My apologies, I admit I've put these on the backburner for too long. Most of these are now fixed.
- Tutorial lang filters work (note, there are no German ones, try Arabic to confirm)
- Addon search isn't case sensitive, but it can't differentiate between "normalmap" and "normal map"
- Undeleting/deleting topics now shows an error if there's a reason can't be deleted/undeleted
- Upvote/downvote is fuzzed I beleive which is why the # might not reflect properly