I also wondered this question and when I began to follow their graphs, I've seen that in general, they tend to decrease more. I waited long time for a coin which I strongly had confidence in it, but never went back its normal average. So, I sold it and converted in ethereum and hodl it in there. I also tried to follow their channels for getting updates but their reactions did not look me healthy. If a project has a potantial, I don't think it dumps so much for a long time. But its your choice of course. You can check their current status from their official channels and connect to the moderators if there are any plans to survive in the market.