You should know this by now since your already a Member.
Set personal message?? Go to your profile > Forum profile Information > And you can see that there's one Labeled "
Personal Text"
You already have the personal message/text from Yobit
I wonder if possibly is a sold account as a member should know this, or be able to find it in settings. Looking at security log:
https://bitcointalk.org/seclog.phpJune 06, 2016, 01:07:04 PM - baomuydtab34261 - password changed
...
June 06, 2016, 01:52:32 PM - baomuydtab34261 - password changed
Possible sell? No hard proof but it is very possible change once to sell, and once would be new buyer possibly.