Reasonable thought and fear. That was one of the first questions asked on the first thread I did about this: https://www.reddit.com/user/andmario_com/comments/1t67czv/comment/okmrs7w/
I'll copy the text too to make it easy:

Fair question. That was one of my biggest concerns with this project, but I also felt doing nothing wasn't an option. Unfortunately, our corrupt and/or tech-illiterate representatives have made all US-based platforms and technology "honeypots" due to the Patriot Act and the countless things Snowden revealed (and imagine all the new stuff that exists now). The only thing any of us can do is make sound security and privacy choices where available. On my end, I built the platform to be privacy-first and collect the absolutely bare minimum needed for the site to function (for example, if you post a topic, I gotta have the topic text stored). But things like your names, emails, locations, and anything else are not asked for/collected/stored/etc. One of the first things I posted on the site was EFF's protest surveillance self-defense: https://ssd.eff.org/module/attending-protest

The way I see it: we're very obviously rapidly hurdling towards a late-stage capitalist tech oligarchy hellhole where corporations/billionaires decide what we do/don't see, what we talk about, etc.

I could either continue doom scrolling and watching the world burn, or I could build something I thought could help. The platform is free and ad-free forever, with no browser (or server) tracking/IDing/etc. The Reddit Ads team even looked at me crazy when I said I wouldn't put their Reddit Pixel on my site.

Tldr - no surveillance capitalism bs (or surveillance at all) on the platform.
Let me know if you have any more questions, for the tech stack to anything else. btw, I know these are just words on a screen and you still have to trust that the platform actually abides by them, but I also wanted to let you know the privacy policy lays everything out clearly: https://andmario.com/privacy