Firstly, it does not appear that there is a meta or community community for the instance, so this looked to be the best place to post this.
It appears that only the admins from the instance are federating outwardly to other instances.
I was browsing some of the communities here with my main lemmy account and started to notice that none of the posts were actually from mtgzone members. I did see posts from Mike and Andrew (I forget the format to tag), but everything else visible was posts from users from other instances. I checked to see if it was just that instance, and tried one of my underused accounts from a larger instance and still nothing.
My account is on sopuli.xyz, and both while logged in and not logged in, i have seqrched for my user name, my comments, and posts. I have done the same with lemm.ee (i also have an account there). I have searched on other instances while not logged in. All have yielded nothing.
I am subscribed to a number of mtgzone communities with my sopuli account and regularly see posts there, both by members of mtgzone and other instances.
So there is some content making it out. I am wondering if maybe three nature of my account creation caused an issue, a corrupt account maybe? When i signed up initially i botched entering my email address and was never able to complete registration. I created a second account and you or Andrew changed the name or something, it has been a while.
I tried to log into the second account a while back to test that theory and was unable.