Rumors of "tankies" running lemmy.ml gave me pause at first, but since it's a federated network with established independent nodes, it seems to me that a single problematic one shouldn't condemn the whole Lemmy platform (let alone the whole Fediverse, of which it is a part).
Alternative implementations would probably help as well. Kbin seems to be one. Given the sudden recent interest, perhaps we'll see more before long.