As far as cryptocurrency investments go, profit from investing on busta* sites was almost guaranteed, compared with other places (e.g. buying shitcoins when they're cheap, defi, etc.), where profits can exceed 1000% (against BTC, more against USD), but the risks are also extremely high.
I have not tried to invest in any gambling site but based on the journey of some people I know, they really made profit though it takes time and with a little amount. So I agree, it is somehow less risky compared to investing in coins that has no concrete basis to say that it can succeed in the future but I guess this is only for new coins sprouting since they dont prove anything yet.