Originally Posted by
santy
As GM I can log on, ask for a M+ and will almost always be one of the top contenders if there is a group in the forming. It is a nice benefit.
The real problem, is most people ask generically in /g "Hey guys wanna do a M+?" and get no answers.
Guild chat is something a lot of people don't passively pay attention to, even if you're tabbed into wow its in the corner and 90% of guild chat stuff outside of the build up to raid time is usually just meaningless, either having a laugh or talking politics or science etc etc.
If you want to do a M+ with people in your guild, message them directly. In a lot of raid teams, people will raid together but never talk to each other directly and you wonder why that other person isn't inviting you to M+ every now and then. Being sociable, talking directly on an individual level might yield something a bit more promising. If you're getting shot down in whisper every time by multiple people, then your own play style or behaviour is something you've got to look at.