the guy is representing himself as having special knowledge about what Signal is doing internally and what they’ll do next.

I didn’t get that impression- to me it just came off as him being cynical about platform enshittification.

Like, with recent news of Nexus being sold, my reaction was to join a chorus of others excplaiming that Nexus is about to be shit. We don’t know that - we just know it’s being sold. But we’ve all seen a ton of services follow a similar path, so the assumption feels justified. If a Nexus employee came out and said “Don’t panic, literally nothing is going to change!” Whether that came from the janitor or CEO, I’d have a similar knee-jerk as the dude in the OP.

I also have no idea who the old or new CEO of Nexis is. If it happens to be a woman, me arguing with her wouldn’t be from sexism, it’d be because Nexus is setting the stage to go down the toilet.

Dude in OP absolutely could just be a misogynistic prick, but there’s certainly not enough info in the screencap to say so with any certainty.