What is the actual goal here and will this behavior achieve that goal? Are we...

Adding a bunch of bullshit fictional data into a database that contains and will continue to gather legitimate data.

It strikes me that this would make the entire dataset less useful for legitimate medical research while not really doing much against targeted attacks. I could see some women's health researchers using anonymized data from something like this, and noise from people vomiting into it in protest would destroy it for that use. Or, you'd notice a bunch of accounts all join at about the same time making nonsensical data and just ignore the data from the accounts that joined around that time. Meanwhile I doubt this will stop the Gestation Gestapo from correlating genuine data with the actual identity of its owner.

Are you going to try to input obviously fake data? Make an attempt at realistic data? Try to trigger a Gestation Gestapo death squad, trying to make the service useless via false positives?

Or run up the service's data bills and maybe take up some of their cloud storage with fake data?

Start adding bullshit fictional data coinciding with women genuinely leaving the service

What would this accomplish that just having women stop using the thing do?

I've been trying to make that point for over a decade now. I think I get to unironically drop this xkcd. The alt text mentions diaspora, lol.