There is an interesting article titled "Please Don’t Share Our Links on Mastodon: Here’s Why!" about the startling load that Mastodon's mass-distributed link preview generation has on small independent webservers. But I cannot link it to you, because of a reason
@mcc I sort of understand where they're coming from, but on the other hand I'm running my web server on 11 years old hardware, and I both linked to stuff on it myself, and have had other people link to it, and the only reason I noticed was because I was looking at the logs.