Can you post your original message to the forum here too? That way we can know for sure what was said precisely, otherwise it's just he-said / he-said.
Because people are interested and want to find out the truth? At the moment it's a he-said-she-said situation, with each side posting their own (probably biased) version of events.
The person you're replying to is suggesting that everyone who's "interested and want to find out the truth" here should stop and re-evaluate what utility that gets them, vs what disutility that information-seeking gets the people involved.
To put this another way: the paparazzi that chased Princess Diana to her death, did so because there was demand for tabloid journalism.
The people that invested in this affair that doesn't concern them? They need a new hobby. Maybe volunteering at their local vax site for a few weeks could do some actual good instead of trying to play detective just to feel good about themselves pretending they are contributing.
The technical work that a lot of us are involved in is deeply intertwined with the venture capital business. This is a glimpse of how things operate inside of that business.
Posting the exact text would be sort of the opposite of gossiping. And it is somewhat important because of the possibility of ycombinator unjustly punishing someone(the other possibility being that ycombinator did nothing wrong and this tweeter just burned his reputation). The beauty of the internet and message boards is that if you don't want to take part in the conversation, you can just leave the page.