People who would do this are a minority (I hope): that would be active harassment, and my experience is that in most cases, the community doing the harassing doesn't really means to, it's an outrage side effect.

No message are deleted, its basically just removing the link in between two posts to limit heat in the discourse.

For me, Twitter/mastodon/BlueSky are not really discussion boards and more announcement places, so removal of causal links do not disturb me, but I guess for you it seems more discussion oriented, which I did not understand in my first message.