Most of the time people use MPGH to earn reputation. What I mean by that is they are trying to create a base for releasing paid cheats, so if they want to pursue selling CS:GO cheats they would release a public for a couple months. People then ask them if they are selling a cheat and they make a sale. In Insurgency there is a much smaller user base, so if they were trying to sell cheats they would make fewer sales than a game with more popularity. That is one major reason why Insurgency has very few pubs and also why the ptc providers are very low quality.