Jailbreaking - How do you know if a tweak is safe?

I've been jailbreaking for years now, and one of the things that have always puzzled me was how the jailbreak community determines whether or not a tweak has malicious code since they aren't always open-sourced. With the latest releases of checkra1n, and unc0ver, I've gotten back into jailbreaking since I wanted to jailbreak my 12.9" iPad Pro. From my understanding, the jailbreak itself (usually) is open-sourced, so it can generally be "vetted" that way. I typically stay away from using too many tweaks and try to stick with those from the "more well-known" developers, but I'm curious how others decide which developers/tweaks to trust and use? Do you strictly base it on "bug-reports" and a developer's reputation? What other factors come into play? There are tweaks like "Compatimark" that helps with compatibility information (but that's not really what I'm talking about).

Edit: First time posting a topic here, so hopefully it isn't breaking any rules.