Or do the correct thing and be somewhat skeptical but also logical, and think of things in context, weight potential causes for an issue and pick the likely one.

Speaking from experience: 1. size of mastodon is such a small thing that i doubt twitter even worries about it, among other things they have to worry about - like monetization. 2. My guess is integrity system incorrectly marked a url or link crawler/preview/whatever service is failing to crawl the page, or something along those lines. It can be something else, but my overarching claim is that it was not someone going into admin UI and typing mastodon to block them explicitly to cut the competition out. It may still be a lowly paid employee incorrectly doing something, but it's not for cutting the competition out and very very likely an honest mistake.