Well, you should know the security of this forum is crap. I assume he is just monitoring Legendary accounts and trying different passwords with a script (brute-force) until he is lucky. I have to say my password here was not the safest...

This is happening to more and more Legendary accounts in the last months, you just need to check the /Meta forum.
Thanks for the tip. Where there's a lot of money there's a lot of dishonesty. I'll sharpen my password and make some login screenshots (I don't know if the site owners would do anything about it).
Well, I'm still a long way off from being Legendary.
You too again I'm affraid. Unless the moderators / site-owners can help you.