Im asian and i totally agree with you. I go there often and spend a lot of money there so im sort of a regular customer but I still have to tip the bouncer every so often to get in. The worst part is that they will let in dorky fresh off the boat korean people and leave paying customers like me outside, I never go without being at a table. They do however keep a good ratio of girls to guys which is why its so popular, But ive seen non korean girls get turned down at the door a few times. Easiest way to get in if youre having trouble is to tip the bouncer 20-30 when mgmt isnt outside. But unless you are going to get bottle service, are under 30, and are decent looking, it might be hard to get in.
Ive seen the booking happening a few times, but honestly if you have any social skills you really dont need it there. Most people dont go there until late after they have been drinking somewhere else already. So you are right, there are tons of drunk girls stumbling around there for the picking. Same for the korean hostess places