My thoughts: Please don't make Lemmy a linkdump. Only post that in the news communities or if you're genuinely interested in a discussion. And then add some text of your own, what you'd like to discuss about that, what you find interesting about it or a short summary for people to decide whether they want to click on the link.
I see a lot of news just dumped to Lemmy with 0 interaction or engagement. And it's often duplicated because I already have a feedreader. I think that's more a use-case for Mastodon.