Hubski has failed: its userbase rivals that of a payphone, its creators keep it running as a formality, and the rate of burnout exceeds the rate of newcomers. On an average day, you see as many spam posts as real ones.
When I log into Hubski, I feel like I'm watching a sick dog get sicker. The thing is is that there's no natural shelf-life to a website, so it could theoretically continue on for as long as somebody is willing to keep the lights on. I'd like to say that it shouldn't.
The relationships Hubski has fostered can and will persist after it is gone. There are lots of other ways for people to get in touch with each other. A couple days of sharing numbers and handles should be enough.
I'm one of the youngest people active here, if not the youngest (at 22-going-on-23), and I first came to Hubski 7 years ago in a different life. My cohort of compadres come back here like they come back to an old school building - hi, just checking in, it's been a few years - but it's not a place that people live anymore.
There's nothing saying it ever has to end, but maybe it's time to start thinking about it.