the difference is client side mods adding custom functionality (they inject via that directx dll)... its why quarm removed custom content and all of eqemu custom client shit (along with programs that read/modify particular files within the client) went underground / off the github... eqemu (the server) is not dbg property and thats the grey area... p99 and takp/quarm modify the client but its more like adding/removing EQ features from past/future clients... ill give you shards of dalaya, and yea probably because of lack of popularity