The developers behind Lemmy have spoken up about the current situation regarding migrating users and the effect on their development process.

Two most important points from this imo:

• don't hammer them with pull requests, duplicate Git issues or questions because they got enough of those
• if you want things to move faster, give them money! They are focusing on user feedback and therefore don't have enough time to make a lot of money.

Edit: Here's a Patreon link to the Devs: https://www.patreon.com/dessalines