I partly agree, but I think more of the problem is the conditionality of the signal. If I'm "logged in" to a cruise app (I use Growlr, Scruff, and Grindr mostly) I might be checking to see if I have received messages in the last day, actively cruising for "right now", actively cruising for "later this week", looking to see if a FB is online, or just looking at eye candy. The same, of course, is true for most of the people on there. So even if there's a fair bit of signal (in the admittedly enormous amount of noise), it may not be relevant signal for a given cruiser. A few of the services have some kind of nod to trying to address this (usually a setting for "what I'm looking for"), but I haven't seen any that work particularly well. It's far worse in rural areas like mine, where the amount of relevant signal that involves less than a one-hour drive each way is so small it's mostly not worth the effort.