[Gerald]

It's the plague of BP.
Easier to advertise on, and to use for travelling with, so the number of girls on there is more than used to be with specialized local advertising like the LFP and here.
That means the pie gets sliced smaller and competition drives the market.
Give a client anything he wants and you will get his business beating out the other girls. It's a slippery slope of more risk to get a bigger piece of the pie.
There is also the unfortunate factor of substance abuse. It's easy to turn a blind eye to the fact that more girls in the industry have that problem than don't. When you have an addiction, you'll do anything to fund your need.
On the other side of the coin, the girls are asking "Why are so many clients asking for bbfs?"
Now, it's a simple "supply and demand" business model.
Physically, despite all the marketing it feels better and mentally it's a "mind fuck" that works better than any blue pill. If you've been playing around for a while, the chances of you taking more risks increases. Sex can be an addiction in itself which affects rational thought.
I try not to judge and freely admit I've done it a couple of times (over a 15 year run as a "hobbyist"). However, not with anyone who has a general green light for anyone and everyone.
It was a life choice based on my personal situation and accepting the risks involved. Probably more common than most are willing to admit.
However, I would never be comfortable seeing someone who openly advertised bbfs to everyone. That sounds too much like "I have nothing to lose now because I can't catch anything worse than what I already have".
Play safe, or be prepared for the consequences, which can be horrible to your quality of life and the life of others.