Last year in early december I bought eBitcoin token which turned out to be a scam. Luckily for me I sold them before the ePRX snapshot but alot others have made losses. I really believed this token would be a succes but I've realized that alot of these ERC20 tokens have the same things in common. The devs (or better said scammers) create alot of hype and pretend their token to be the real deal while they never intended to create a working product. I've thought about investing in tokens like Credits and Elixir but I'm afraid they are all the same kind of scam.
Do you trust them?
I think the erc20 markers had nothing to do with it. Any project can be a fraud! It is necessary to study carefully the projects! In order to invest you need to learn to perform the project, to understand the Scam or a really work product! So ERC20 has nothing to do with it!