Tomcat What's so dubious about it?
Well it discourages it but talks about it using some sleazy weasel wording. I don't like that. They should be up front with how much private space you can have under which specific conditions. Instead they have suspiciously ideological sounding mumbo jumbo:
Can I use private repositories for my project?
In many cases, yes, but please read on. Our goal is to support Free Content, and we do not act as a private hosting for everyone! However, if we see that you contribute to Free Software / Content and the ecosystem, we allow up to 100 MB of private content for your convenience. Further exceptions are spelled out in our Terms of Service:
Private repositories are only allowed for things required for FLOSS projects, like storing secrets, team-internal discussions or hiding projects from the public until they're ready for usage and/or contribution.
If you are still not sure if your usage is allowed or if you require a lot of private space for a Free Software project, please send us a formal request and we'll have a look.
I couldn't care less about any service that beats around the bush like this while tacitly trying to force you to only use public repositories. But maybe it's just me because I have zero needs for public repos.