I think most of them are not very reliable. If you are particularly outstanding, it is certainly valuable for some universities to invite you to be their honorary doctor or something, but this situation is basically impossible. You just need to pay a sum of money to register and get a university diploma. Generally speaking, the gold content is not very high, because it is not admitted by your real talent, but by money. This is actually no different from spending money on college. And if you spend money directly to buy a diploma, your ability should not be very high. Some companies look at your strength and then at your ability. You have a high degree, but your ability is never very good or very bad. Then no matter how high your education is, it's useless.