Dude is doing what mastodon users do and tagging random users without reading their autocomplete, posting their random shower thoughts to Lemmy instead of tagging frameworkcomputer@fosstodon.org or sticking to hashtags like a sane person.
They responded as such because mentioning @ framework made it show up as a post on the framework community on lemmy. They presumably didn't understand why, and just thought you were being weird by posting a framework ad on the framework community (where everyone already likes framework)