And they have absolutely no right to do that. "Being vulnerable" is not part of any job description.
I ask because this is exactly the type of comment one of my siblings would make, and she is on the spectrum. She wouldn't be able to understand the social dynamics at play here, whereas for other folks it's just common sense. "Optional" is not really optional in some social settings, and that's something autistic folks struggle with being aware of, much less understanding. The activity may be optional in the most pedantic sense; you won't be struck down by lightning if you decide not to participate. But there will be consequences.
All of which is another reason why this whole exercise is an awful idea, considering that the number of autistic folks in software engineering is probably a bit higher than the population baseline.
Related: [Goodhart's Law](https://www.oxfordreference.com/display/10.1093/oi/authority...)
You can achieve that vulnerability via being a likable and honest person. I think often us technical-minded people forget that relationships aren't an optimization problem and don't respond like you think they would. Just being decent and trustworthy will take you there, saying things like "you can trust me guys!" often has the opposite effect.
What didn't work, however, was the office manager's increasingly awkward attempts to force socialising. When at some point we raised the issue (politely!) that this was often distracting, he became offended and lashed out. We later also found out that he was basically spying on us and reporting back to HQ.
It's one of the reasons why I'm incredibly wary of people who try too hard to be my "buddy" at work, especially if they're not peers.