Should WC not report or talk about something that might not be illegal in other countries but is illegal in your country? Just get over it. The laws in your country are not the same for other countries. The point is, is that even if some use emulators and torrents for illegal things, that doesn't mean everything everybody does with them is illegal. Even budding musicians will use torrents to get themselves known.

Whether someone is sharing a personal file or program they made themselves or a developer / company using torrents to share updates, drivers, patches, demos, or whatever. There are many files on Torrent sites that are perfectly legal. The thing is, is that Torrents are not all illegal either. Is the same issue as someone using a Torrent program to get a Movie like Star Trek Beyond, Scarface, etc. Whether someone uses actually licensed video games like Mortal Kombat, Sonic or Super Mario Bros.

Those ROMs are, as you said yourself are about 'playing Retro Games on NES/SNES/GBA and Genesis' as those homebrew ROMs use those retro console physics, like a game Engine. I've seen a number of free homebrew roms that are designed with NES graphics and physics, as well as SNES, etc. Those Roms are based on whichever console/engine/emulator they use. The thing is that the homebrew roms people make and make available for free are not illegal.

Sega emulator win phone 10