These tasks are actually the same as ordinary activities done by users every day, but now they are tasks. Could you describe more interesting ones? I guess you have!
It's just a start with few features. P2L is interested in attracting huge amount of people, both streamers and viewers, they will find a solution for tasks making.
The most powerful way to obtain information about what to do is to ask users, I don't mean that devs must listen to users and it by this way. I mean they will be able to find some really interesting ideas among tones of inappropriate ones.
It is also clear, that if the project will do it best, then we will get lots of increasing changes not only on P2L, but also on Twitch, because it in turn must try to return all the audience. It seems complicated but nice. I find it special, have many ideas how to do this (not realize in programming, just many ideas that could be true). When it starts working, from the early beginning they'll face different obstacles, among them is lack of commercial space. Because majority of people are not ready for ICOs yet. Or at least lots of them are just not interested in investments at all.