yeah it looks like if i moved the entry description out of the json blob and into its own field then we'd probably get accurate results by searching for the substring "collab"
also i found evidence that i actually went back and added collaborators to some tracks from 2013? i'm not sure exactly when i implemented this feature but that sounds too early
feature was added in 2016 or 17.
the collabed entries from before have been updated by me when i came across them and the accs were clearly stated in the description. i usually also put a comment on the entry about it or messaged the person via dm