We can't really blame people for creating them as long as we keep pouring money to every meme scam out there. It is making us look bad yeah, but that's the price we have to pay for keeping up unregulated markets.
What it comes to OP:s question. It's the matter of your preference. Erc20 is popular but the fees are unbareable so you have to be able to afford to distribute it.
The exchanges should be self-regulating the coins they list, like the stock market does.