Yea I think sometimes there's a queue where it's been up for so long that people that have waited 1h drop out, then new people come in, but then 10min later the people who have waited 50min drop out, then some new people come in and the people at 40min drop out, etc. So it forms like a cycle of people dropping out and coming in.

But I think it's lost critical mass, and I've started to queue less and less.