The idea, of course, is a good one. If there is a large resource where all doubtful / confirmed addresses of all blockchains will be collected, this may come in handy in the future. In addition to the obvious scammercrafts, there are many hidden scammers who create projects with fake activity.
For readability, data should be structured. And this should be constantly updated. This is a lot of work. And perhaps pointless in the long run. Knowing such a base, scammers will always create new addresses for their affairs.