At least this is the right thread for such things, takeing into consideration how many were scammed by the Mycelium guys and their tokens.
I have to say I'm surprised with such claims. I'm using Mycelium for quite a long time now and never, ever had any issue. In fact it's one of the best wallets I have ever used.
I'm not claiming it's not true that some users might have had some issues but I think there must be some reasonable explanation for that.