You seem to not like the name or the things we do. Maybe tell us more about what you like…
We had the poll on Matrix also which is FOSS, and our issue tracker built on Gitea. The minetest forums are notoriously sluggish and many there don’t play VoxeLibre. We reached out to players in all areas. The fact remains that 80%+ of our players choose discord and ignoring them is not a helpful. A lot of people do not check the forum frequently, and that policy would be exclusionary and unjustifiably dogmatic.
We make extra efforts to reach out to our members in FOSS communities and do more than most to keep away from non-free software like Github and keep our channels bridged to matrix.
I can assure you the effort is non trivial and takes away from actually writing open source software. Very recently it lost all the data and we had to manually bridge 15+ channels again when I had waay too much other stuff going on. Many projects abandon these bridges because they are unreliable.