We have enabled everything XenForo has to offer and turned it up to 11! And you won't believe how much spam this is preventing. However, we are also quite annoyed that the "occasional" spam still bypasses all these measures. Our other games have a bridge between the forums and game accounts, which is preventing all kinds of spam very effectively. Unfortunately, we can't implement this for games that do not require an in-game registration. We will put our heads together and see what can be done to further improve spam protection in this forum.
We already set up a strong filter that is catching like 95% of the actual spam, but unfortunately some of the messages that aren't caught are written in chinese and posted when it is still night/early morning in Europe, hence they stay for a couple of hours until someone manually hits the red button.
Anyway, we'll keep doing our best to let the forum a clean and cool space for everyone