Last-Word-And-Block (LWAB) is a tactic on social media used by the trans cult possibly more than any other group. The strategy is to reply to someone you disagree with, then block them immediately, effectively getting the last word. On sites like Twitter, the user can’t respond to you after you have blocked them, and thus don’t get a chance to counter your argument or rhetoric.
This is generally used by cowards and bullies (which are in abundance in the trans cult). It is unsurprising that trans cultists use this strategy since blocking is a core tactic in their movement.
Note that while blocking a user is generally okay on social media, this tactic is cowardly as it relies on technical implementation of blocks (you can talk to the person before blocking them, but they can’t talk to you after) to silence dissent.
Counterstrategies
Ignoring the jackass that blocks you like this is fine. They aren’t worth your time, and you aren’t going to change their minds anyway. Another good strategy is to continue the argument on your terms (if you feel you must) and reply to your own post, or create a new post screenshotting their cowardice.
I myself like to use socks (which I have collected due to years of trans cult takeover of social media and censorship by banning) to reply to the account that just blocked me and get my word in before blocking THEM. That is, reversing the strategy.