The swinging community is a transient one, people drop in and out of it all the time and life generally does get in the way at times, families, or parting company or add in a dozen social situations, or they just grow out of it (if there is such a thing) it's how it is, but I can tell you from behind the scenes that there seems to be lots of people on here meeting up and lots of the time and then some.
As for timewasters, here is no different to anywhere else that has a community platform, it's par for the course and inevitable that a percentage of said community will be nothing but window shoppers, I'd hazard a guess that as it's essentially strangers meeting each other that a good amount of 'meets' go awry due to it being the unknown element of the meet causing people to be cautious and rain off at the last minute...and of course there are those just here to tititlate themselves.
Perhaps you're jaded? maybe your own criteria for a meet has changed? perhaps you've been in the scene for so long that you are quite specific and know what you want so have narrowed your search beam? Swinging has evolved, it no longer exists or at least has diminished in it's purest form, swinging was for couples to swap partners, now it's pretty much a free for all, singles being in the majority where once it wasn't really about them, you as a single would not normally exist /get a look in n the truest sense of swinging.
For me personally, I don't enjoy the 'social' side of things, I haven't the slightest bit interest in meeting people as 'friends' to share a few drinks with and a natter etc, yuk! For me, it's about meeting with a view to fucking each other, for sure there is an amount of getting to know each other prior to the boudoir bawdiness but thats it, stuff the tea and biccies meets, no thanks!
Move on and move with the times, perhaps consider readjusting your strategy or way of thinking and enjoy what and who is on here or fold and perhaps miss out, there are most certainly new ventures on here for you (as there is for all) you just gots to perhaps work a little more for it.
No pain, no gain.