They used to be good but with onlyfans and the increased popularity/loss of stigma of using dating sites, 4's think they are 9's because thirsty idiots shower them with money/praise/compliments, meanwhile they girls egos explode because they have 400 likes and when you are are overwhelmed with choice you filter the fastest way possible - superficial looks. Top tier dudes in the looks department basically get anyone they want, normal guys only get the girls that are disillusioned by their experience with the attractive dudes that saw them as options.
Thats aside from the fact that they are all useless if you are a guy and not paying for at least the first tier of premium service, which can be like $50 damn dollars a month. blBack in the late 00's, I was in the worst place ive ever been financially / physically / emotionally and still met tons of girls using a free account on OKC and PoF, fast forward to last year Im in great shape, have the best job ive ever had, and even paying for premium Bumble and Hinge I went on only a handful of dates with 3 girls over 2 months that went absolutely nowhere.