I had a lemmy.ml account before it was kewl.
People were hosting nefarious sites and services using their port forwarding, which brought law enforcement to them, IPs being blacklisted, and hosting providers cancelling them.
https://mullvad.net/en/blog/2023/5/29/removing-the-support-for-forwarded-ports/
Eweka + NZBGeek Eweka has a massive sale, but I can’t find it because it’s on a privated Reddit sub.
Password protect your services, set up your web server correctly, use cloudflare for some extra security against stuff like DDoS/DoS attacks. Also less is more, do not expose what you don’t need to expose.
There is always inherent risk with opening up your stuff to the world wide web.
Some stuff you can’t even secure yourself; some services just have bad security practices. The only way to fix them would be to wait for an update or submit a pull request.