I disagree with you, that might be the main issue. If you have a history of multiple tourist visas and several months spent in thailand each year, they might refuse it like they've done just one
as the other guys already warned you, no no no. Don't even ask or try to apply for a visa, it'll be rejected and that might give u issues in the future. Don't do that illegally, the thai businesses around your friend's will call the police within hours
I know that god, it was a folk back in 2005 who used to record all those chicks of soi 6 without using the rubber. He collected all the stds and even discovered a couple of new ones. His buddy used to shot the "asian street meat" series. You can check it out ;)
I came to thailand when I was 19, I got a PhD in mongering with a thesis about the macroeconomy of soi 6. Sick buffalo requires no more than high school, that's the ABC of thailand.