Re-evaluate extra domain names

[lazka]

Just to write it down, so we don't forget. Since it was pointed out in chat.

We currently have the following domains:

• msys2.org
• msys2.net
• msys2.com
• mingw-w64.org
• mingw-w64.net

while we only advertise and actively use the .org ones.

For msys2 this is for historic reasons, see https://sourceforge.net/p/msys2/mailman/msys2-users/thread/C2B0EE3E-363C-45F6-B806-59D168E981FA%40gmail.com/#msg35013765

For mingw-w64 I don't know.

Personal opinion: All in all its not that much money, and removing an existing domain opens up the possibility of impersonating our services, so I'm undecided.