@ginnymcqueen It depends. I've seen several love floods (prompted and unprompted), and some fairly impressive defensive actions from time to time, but I can't say why you haven't had the same experience.

For myself, I'm pretty bad a lovebombing other than close friends, and tend to send unsolicited @'s mostly when there's something I disagree with from someone I think might be persuaded somehow, so obviously I'm not contributing very well to the general picture.

I think the general response to dogpiling on the birdsite and other similar places would be to report the involved accounts, which very seldom has any effect, as I'm sure you're aware. Actually putting yourself out there visibly exposes you to secondary harm, and honestly, there's simply not that many people who'd take that kind of figurative bullet for a stranger on the internet, and accept becoming a target with all the entails for themselves and their friends/family.