They won't disrupt anybody. Online porn business is a monopoly. Various tube sites have all one owner. The diversity is there to mask the reality.
As for the SMT - it is the same as with every token / asset.
- Does it have real use?
- Does it (help) facilitate something which couldn't be done without it?
- Does it have a strong community before launch?
If at least two answers to these three questions aren't a very strong YES then it is not a token. It is just another excuse to draw some money from our pockets.