If they piss you off, you will stay on their platform longer, and they make more money.
That is the sad truth of EVERY social network.
Lemmy might not be that advanced yet, but as soon as they get big enough to need ads to pay for bandwidth and storage, soon after they will add algorithms that will show you stuff that pisses you off.
One way to combat this is to take a break from the site. Usually after a week, when you come back it will be better for a while.