The existence of operations like these is proof positive that there are too many people in college.
Anyone fit for college wouldn't bother to pay for this crap, and while there will always be a few people who squeak in, there should NOT be enough to support an industry.
The
only students I've known who used these custom "help" and writing services were at an elite university, with plenty of money and plenty of SAT points. They could have done the work themselves; they chose not to. My students can't afford to spend the money, so they cheat in other ways.
Some students will cheat if they think they can get away with it. Some people will cheat on their taxes if they think they can get away with it. It's a behavior influenced by cost, benefit, and risk, not particular to an era or a social class or an academic level. Part of the job of teaching is making it hard for people to get away with it.