Greetings and welcome to the wiki! I LOOOVE the Shotgun tool you added to the Implementations page, but I seem to have found issue(s) with it. When pulling up geohashes in my home graticule of 39 -89, some of the points I have visited show up and some of them don't. In particular, I noticed that 2015-05-28 39 -89 and 2015-07-06 39 -89 don't appear, but 2015-07-11 39 -89 does. This was my specific search I used: 
But anyway, thanks for setting it up in the first place (I have long wished for such a mass point gathering tool), and good luck in your own geohashing adventures! Mystrsyko (talk) 18:46, 4 September 2015 (EDT)
Many thanks for bringing this to my attention and for the feedback.
It looks as though on some dates the wrong coordinates are being generated (so are falling outside your search area). Specifically, the problem seems to be that those dates are causing the East of 30W Dow value to be used instead of the Western one.
I'm currently trying to work out why this is, so will post an update when I fix it.
Zamzara (talk) 07:55, 12 September 2015 (EDT)
I think it's fixed now.
Zamzara (talk) 08:28, 12 September 2015 (EDT)