I took the number from here: https://blog.codeberg.org/letter-from-codeberg-onwards-and-u...

I think another big "moat" is actually that Codeberg is composed of natural people only (those with voting rights, anyway). Real people have values, and since they have to actively participate in Codeberg in some way to get voting rights those values are probably aligned with Codeberg's mission. I don't actually now the details of the standardization process you cite, but I think this is a big difference to it.

Additionally, from skimming the bylaws of Codeberg I'd say they have multiple fail-safes built in as additional protection. For one, you can't just pay ~1600 people to sign up and crash a general assembly, every membership application has to be approved first. They also ask for "support [for] the association and its purpose in an adequate fashion" from its members, and include mechanisms to kick people out that violate this or are otherwise acting against Codeberg's interests, which such a hostile attack would surely qualify as.

Of course it's something to stay vigilant about, but I think Codeberg is well positioned with regard to protecting against a hostile takeover and shutdown situation, to the point that DDoS is the much easier attack against them (as was the initial topic).