At least according to the EFF: https://www.eff.org/deeplinks/2013/11/trademark-law-does-not...
> The circumstances under which a company could actually lose a trademark—such as abandonment and genericide—are quite limited. Genericide occurs when a trademark becomes the standard term for a type of good (‘zipper’ and ‘escalator’ being two famous examples). This is very rare and would not be a problem for Canonical unless people start saying “Ubuntu” simply to mean “operating system.” Courts also set a very high bar to show abandonment (usually years of total non-use). Importantly, failure to enforce a mark against every potential infringer does not show abandonment.
They don’t seem to mention it on their website. I don’t see any guideline for how to respect their trademark: https://discord.com/branding
Now the question, does it risk dilution if a company doesn’t say what’s allowed.
Interesting. That about sums up my opinion of their development team.