What even is CointTiger? I looked at the site for a bit, and it looks like some developer got drunk and made it in 8 hours. It's definelty not something that would be a top crypto exchange, probably just washed volume.
It looks like a korean based exchange that is purely focused on IEO's, the site is littered with bad translations and has barely any English support for his western demographic. I get Binance-clone vibes of them with their layout structure with there being labs and a growth fund.
It's pretty obvious that Binance did washed trading/market making, whatever bullshit term they are calling it now - the company has really gone downhill in the past year with the hacks and their new craze for IEO's. It's definitely helped popularise exchanges that have been made just for profiting of IEO's
Yobit - they've been running their own IEO's for free money
BW - pumping their own IEO's
Probit, Cointiger, Bitfinex, the list just goes on, and on...