Maybe I'm misunderstanding you, but I've never had any trouble logging in with Jerboa. It'd be my favorite app but it has framerate issues on my device, so I'm using Thunder.
As for the content, nothing is stopping individuals from removing or exporting their comments. There are automated tools that will do this for you with very little effort.
I've been thinking about this. Shouldn't we be copying rising posts from Reddit to their respective communities on Lemmy? It would help bridge the content gap while the userbase is still growing, and it's all public information.
Migrating the community to the fediverse safeguards it from ever needing to migrate again, due to the decentralized structure where nobody controls the content. As long as it's on a corporately owned service, profit incentives will harm content or even force a migration eventually. I think it's a bit selfish to push that inconvenience onto the future users when we have an excellent opportunity to do it now, for all Reddit communities, and be done with it forever.
Ah yes, because moving to a platform free from profiteering owners, an objective improvement to the community, is clearly just because fefes were hurt...
#BanFrance