Revan belt...

Why so many sith in ToR MMO or even teh rtailer wear that kind of stuff?? What does it really does?

What does it really does indeed.

ops sorry.... That's why I shouldn't write late in the night...
Cannot edit now...

You mean why do so many NPCs wear Revan-like armour? Like Vindican?

Basically because it looks cool, I would imagine.

Also, not really sure this goes here, but...

Because Bioware wants to cash in on the kotor love.

Do you reckon his look influenced Kylo Ren's appearance?

It had to have in some capacity; they're too similar.