Super shady. I wonder how often this occurs. Let's make a website just to index open source software being sold inappropriately/ against the agreement of the software. Seems like this problem will only grow if someone can grab some open source software on this corner of the web and put it on a shelf with a pricetag on this other corner. Rightfully the profits would belong to you, but it's free software, so people are just handing this person $50 to get access to your github effectively?