Since Lemmy instance are not backed by commercial interest, but rather by nice volunteers and donors that have money and time to spare, they will be heavily affected by economic downturns (we still can see commercial interests still affect users negatively tho with reddit). Here are my thoughts on the matter:
That is why you should always back up your comments on your personal device, would be nice if lemmy had an automated way of doing this (I should look into this more)