I've been self-hosting a ton of things for decades. It's been fine and I'm certainly not going to stop. For a small amount of time spent doing maintenance stuff, I get to have complete assurance that my service providers isn't doing something terrible to me because I am that service provider.

As a bonus, I have a much greater amount of uptime than any third-party provider I've seen and when there is a rare instance of downtime, I can just fix it and get it back up quickly instead of sitting around twiddling my thumbs for an hour or more waiting for someone else to fix their systems.

I do the same. I don't discuss with the people who claim otherwise, they just had a different experience and I have a different one.