Welcome to the game! I've seen you adding graticules for a while, and discovered your maps. I thought I have to say hi. :D The most reliable way to add graticules is to add them to the continental pages in the Category:All graticules.. then User:reletBot will come around eventually and generate the pages, and update the graticule templates.
I've noticed it was editing some of your pages, and undoing changes. That may happen if the All Graticules list is not up to date (sorry about that). If you do not want it to edit a page automatically, add the Template:Maintained.
You may also consider to move your maps (they look awesome) to pages Argentina and maybe Chile... there are graticule maps for a few countries and states in the Category:Regional geohash map.. e.g. Germany, France,... etc.
Looking forward to reading your reports too. :D -- relet 20:23, 21 February 2010 (UTC)