Thanks.

One more thing I noticed, after I entered fake account information with password FU.K YOUXXX
is that it redirects me to regular Bitvest Plinko Signature Campaign after it takes my 'login details'
https://bitcointalk.org/index.php?topic=5088858.0

Maybe lightlord, creator of this topic, should be contacted regarding this,
just that he is aware of the situation.
They are probably using other random links, with malicious attachments.

One more way to super protect is to install browser extension called NoScript, but it is a bit complex.