Bit of (rough) science.

You can use the shape of the curve for anything like this to predict a minimum number that it should get to. At the moment, it's been more-or-less on a plateau of 1,600 signatures for the past 3 days and is currently at about 6,500. No sign of the plateau tailing off at the moment, but when it does start there'll be about 1-2 times the daily rate to go. At this stage chances are, therefore, that it will reach at least 10,000.

Bellringers are in, West Gallery Musicians are in, can anybody suggest who to contact next to keep it on its plateau?

:-)