Its the same as the GitHub problem though, if you want to get community involvement then the necessary evil is to go where the people are. We use GitHub and Discord as that is where the vast majority of our users are, our Lemmy community sees barely any activity over our subreddit, we have barely anyone clamouring for Matrix or IRC. Our Mastodon is probably our only large 'fedi or fedi—adjacent' platform and thats because we drew the line at twitter. Would I love to get away from Discord? Absolutely, but that limits our ability to have an active community whilst we are still growing the project.