You aren't speaking for me my good sir.
I'm talking about going back to the previous few planets when the quests are green.
Its very easy to see how many people are on planet. It is not a matter of not having the numbers on planet to do the quests, its a lack of interest from the community.
Did you try only the General chat? Most players have it turned off, or at least pay very little attention to it.
I never had any problem finding groups for Heroic quests, and since I'm quite ahead of the curve on the planets I leveled through I usually only see 5-10 players around at one time. Solution? Talk to them via whisper instead of spamming General in vain.