TS wasnt asking on strategies to win from mount bottom, he was asking why it was so hard to submit someone who just hugs. Big difference. My opinion was opposite of most posters, that hugging is a good way to make submissions more difficult, in which Ryron agreed. Ryron also explicitly said hugging wont help you escape. It isnt so easy like everyone was making it out to be.
It certainly slows things down, but I don't think it really makes it harder. The final outcome becomes more certain. It just takes patience to get there.
Using some numbers to illustrate, if I mount a non-hugger, I might think I have a 50% chance to submit him within 1 minute. Otherwise, he will probably make space and escape since that is what he will be trying to do the whole time. And if he does escape, then I'm not dominating anymore.
If he's a hugger, it might be a 10% chance within 1 minute, but I know he won't escape. If I keep the pressure on and wear him down for several more minutes, the chance that I'll submit him at the end is like 75%. And even if I don't, I am still dominating.
It's like the turtling strategy in the online RTS games. When the guy just builds a bunch of defensive walls instead of attack units, he prolongs his survival in the game. You can't just take him out right away. However, he also practically ensures his eventual loss. The opponent just needs to be patient, realize the game is going to take a little longer, and switch strategies to guarantee victory.
If a guy hugs me, I don't think "Oh man, he has good defense." I just smile and get ready to make the rest of the roll hell for him with pressure. It doesn't make the roll harder. It makes it much easier really. I just pressure and grind and take advantage of the fact that I can spam a simple submission like the ezekial repeatedly, and there is nothing he can really do to stop it as long as he keeps hugging. He might be able to fight it off for a while, but it just keeps coming back again and again and wearing him down.
If a guy is able to make enough space that I cannot ever really establish the mount to put pressure properly, that makes the roll harder for me. That I consider a good defense.