My problem with porting in general is really more "make profit with a port". As coder, if somebody take my code or my binary without my permission to produce something and make money with , i really won't like that....
In addition to the fact that there is no interrest for me to have the exact same game on coleco that i have already on MSX. But i understand that US people don't have easy access to MSX so it is interresting for them, i agree.
Do you think opcode will like , if one day he release DK Arcade on colecovision and that somebody port it (before him and without his agreement) to MSX and sell it ?
I think the games being ported are always from the 1980's, all other recent games are being done with permission of owner like the Pixelboy new line-up for Christmas.
In fact I think he asked for permission for porting The Cure (a Castlevania) and Uridium but the developers didn't want it ported nor wanted to do it themselves.
Given the community is so small, it looks like a non-written rule says "no ports of homebrew without permission" and I think that's good