I think the more there are such platforms where you can quickly find information, the better. I use different resources and everywhere the information is different and it's good, so I learn different points of view.
Well, I think you can find these useful if you are a focus on researching on crypto related matters because this is its one unique features.
Yes, this will help us a lot in crypto related matters but i am still hoping that it will not only focus in that field and wikibits will still add more features that will benefited all the users.