I'm normaly not involving myself into such topics, because I couldn't care less who scammed who.
However it angers me to see people selling stuff which is basicly not done by themselves, don't get me wrong it's not about the money, it's about the disrespect people held towards the person who made all the work and aren't even left credited (probably the biggest reason a lot of devs left over the years)
I didn't even have to take a closer look at the code and already saw that the entire core thing is copy & paste based off my old training room script which I made almost a decade ago. (leaving the
link here)
Feel free to base stuff on other peoples work but atleast don't claim it to be yours (or credit them) even if you made some utterly garbage edits to it and ended up making it some low performant script which is a disgrace to the original code.
I feel sorry for all of your clients which received such copy and paste scripts where you barely put any effort in it and even charged money for it.
Sorry for all the offtopic, but I felt the urgue to voice my opinion in this case, because that's exactly what drags otland further to the edge of dying.