Personally I think it is too blocky and the colors too random, but I don't know the original comment that gave the inspiration. I like much more, although I'd rather see the rainbow colors follow the direction of the swirl more.
I just searched for "Debian Rainbow" in an image search. I'm sure you can easily hack something together with a rainbow gradient mask over the regular logo in an image editor.
I'll fix it up in a bit, but I made it on my phone because I was in the process of re-installing Debian on my potato laptop, and it felt like blasphemy to make it on my gaming laptop (which is currently Windows only until I get another SSD for it), lol.