Adult chat forum hosting
I can't speak to the USA as we don't have any servers located there, but the only big issue up here in Canada is any content involving under-age (under 18) individuals. It won't be of any use that you're offered 100 connections, if the server is slow as molasses. If so, you could run it on a VPS and tweak the settings to get the optimal performance... Maybe if you increase your budget and pay them more they will allow more freedom of your site.
Websites with popular chat rooms can earn income by placing ads around the chat room interface.
It won't be of any use that you're offered 100 connections, if the server is slow as molasses. I don't quite imagine that 2000UV/day will cause that problem.