We rewrote a good portion of it (changes italicized and bold):
Rain is a unique feature of the Gridcoin Research wallet. It permits anyone to distribute a set number of their GRC to the participants of a particular BOINC project. This has the potential to draw more participants and their computing power to that project. We intend to explore the way Gridcoin utilizes this feature in a future post.
Does this edit fit with how you view the rain feature?