Yes, these altcoin exchanges are one of the main problems.

I've a simple soluiton to this problem

I suggest the community start its own exchange with 0% (or vey low) Fee Trading, we can add a Donate Button like Wikipedia.

I think this solution is the best way to short-circuit all these scam and shit coins.

This exchanges will be trusted by the community and reliable members in this forum.

If anyone is interested here, I can help to build that plan.