The mistake that many people make is to focus on the economic aspects, which may seem like a great investment opportunity for many of those currencies (due to the small market capacity) without focusing on the technical aspects.
If you are not able to verify the technical aspects and read all the code, it is best to use the central platforms after making sure that they are safe, contain close to real trading volumes with a technical team who knows what they are doing.
Many altcoins (Tokens) are not long-term projects so be careful when trading.
I think the subject of discuss is quite different from the OP subject but your position is quite clear and very valid in the general discuss of blockchain, for example, I see Justin as a master shiller and a marketer not capable of delivering Stellar product so I don't trust him.