how can people use linux when ....

there is a compatibility issue??

Are they not gamers?
They don't use general programs??
or are softwares actually compatible on linux??

>>40
He doesn't, he always says that it's GNU/Linux. It's both.
You can't just replace some of them with proprietary ones, because it may violate the GPL (derived work). And hey, most SW in GNU/Linux operating systems is licensed under the GPL, which was created by the GNU-people.

Maybe in the future there will be GNU/Hurd or OpenSolaris, which will be licensed under the GPLv3. I just hope that OpenSolaris won't get the running gag that Hurd is :)