On the funny side, reading the website tagline, apparently they claim to know who is attacking you, they just happen to miss out on who attacked them.
Turns out they are not really a security company, just an aggregator of bad IPs. Ideally this kind of aggregator problem is best suited for a trusted not-for-profit company where providing the data needs some level of credibility and querying the data costs you nominal fee to keep the setup floating.
What, exactly, is the definition of a "security company" in your mind? Threat Intel companies definitely fall under that normally, so I'm curious what you think it is.
Also, the idea that this type of thing could just be stood up as a "not-for-profit" company and ran for peanuts is kind of silly. How would the nominal fee pay for the engineers and infrastructure? Or would this just be a volunteer effort and you'd like people to do this for free for you?
I suppose CrowdSec isn't used to analyze GitHub's traffic, so they wouldn't have much info to go on.
If they had self-hosted their own repos, they might have had more luck.