Thank you! Lemmy is a tremendous contribution to the wider Fediverse, and no amount of "thank yous" is ever enough for people like you writing free software and giving freely to the public domain.
I have been on Lemmy, and around the Fediverse on various accounts since ~2021, and a suggestion I have seen promoted countless times is for communities which federate across instances. e.g. posts to Linux@lemmy.ml will show on Linux@lemmy.world as long as lemmy.ml and lemmy.world federate with one another. If I remember correctly, each of you have previously opposed this idea for multiple reasons. If you do still oppose such a feature, will you please reiterate why you think this is the wrong direction for Lemmy? Also, have you considered adding a multi-community feature similar to Reddit's multi-reddit feature which allows end-users to combine multiple federated communities into a single page just for them?