@bug well, it turns out lemmy and mastodon are not quite as compatible as hoped. I subscribed to a lemmy community from mastodon, and every comment to every news items shows in Mastodon as though the community owner boosted it. I mistakenly thought the comments were being boosted by moderators of the news community - totally my bad. I have unsubscribed now until some day when they fix that (for each news item I was getting that I wanted, I was also getting about ten comments - out of context in time order - with the rest of my feed; not a good user experience!)