Quick update: Registering for the forums no longer is automatic. And you will be forced to write a few sentences about why you want to register. If I don't like it you are not going to get in. Sorry for the inconvenience but I am both fed up with spambots and with wondering about whether a user registration is from a spambot or not. Hopefully this will help. Sadly it will also slow down registrations as I do not have the time to check the queue daily (probably only weekly).
More measures (e.g. additional administrators) to be introduced as soon as I find the time to do so.
Greetings
Thomas