I can easily use my login/password combo to login to the forums (as this information proves). But I can easily not login to the main page.
Feasible problem: My username contains an "ö". (I would certainly not mind to have actually it changed to "oe")
I am not really a brand-new user; I had an account in 2005 or so, however seem to have actually lost it. Still: Re hi 🙂