The more you call it a Reddit alternative, the more people will stop migrating over as the Reddit outrage cools down (and as much as spez can go fuck himself, he's right, it will pass). I think Mastodon had the same issue at the time of the Twitter migration, but lately it's been focussing more on the fact that good instances provide a nicer small community feel that's more reflective of the state of Twitter in 2008-2012 or so.

Advertise the community, not the drop-in replacement for another platform that will always be larger and more mainstream.

It's fine, but not great. It works in a pinch, but it doesn't feel nearly as smooth/integrated as a native app.

There are some subreddits I can see value from cross posting from, but this isn't one of them. News and stuff, sure, go for it. Stuff that's personal to a user though feels weird to me.