I wouldn't say 99% of them are scams but most of them are just stupid or worthless.
Scamcoins are not so bad, only the fools are fooled. Ecosystem with natural selection.
I agree with this fully. A fool is easy parted with his money they say.
Though I dont bother with them I think alt coins should stay. Keeping them out of the way in there own section is adequate. Those that get scammed in there just have to learn their lesson.