It was in this thread here:
https://lemmy.dbzer0.com/comment/21153303
A company was calling their product Open Source because they published the source code and allowed anyone to modify it. But they didn't want Google taking their work for free. Lemmy users called them scammers/open source washers because they didn't want their work exploited by large corporations.
I still find it weird that Open Source defenders are adamant that you must allow large corporations to exploit your work or you are a fraud. I had no idea.