there are some that look good. pancake or safemoon is one that is worth investing in. so not all projects that use the BSC network are bad and scam. Actually, from the start, projects that use smart contracts can be categorized as bad projects. because almost 90% of projects that don't have a private blockchain end up dying or failing. only a few survive, and even then very few. so it's not only in the binance smart chain, projects that use other networks must also remain under suspicion.
I think being created by using BSC smart contracts doesn’t necessarily guarantees that the projects is low quality.
you know some projects aren’t too focused in creating smart contract platform, so their own blockchain could always be created at later date.
also, smart contracts exists for a reason, it’s some of purpose is cutting the required resources and time needed for building a projects that are rather focused outside the blockchain itself.
having their own private blockchain also requires great commitment so it’s another resources that’s gonna be wasted, using smart contract for starting up their project is definitely fine.