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The rain feature is 100% functional and used extensively. It can only rain on whitelisted projects, but @scalextrix wrote a Python script that lets you extend that functionality to any project if you so choose.

Some recent examples of rain:
YAFU and DrugDiscovery@home rain
Vortac rains 10,000 GRC to celebrate a milestone

Yes it's active, it happens every now and then. Just a few days ago, the biggest solo miner (or one of) on GRC rained something like $540 worth of GRC to projects.

A pleasure as always.

It's active and is used every now and again. There are some people working on improving its functionality.

There are some people working on improving its functionality.

You are confusing Project Rain with rain by the sound of things. The rain implementation is complete and 100% functional.

For example, scalextrix just wrote the script you mention just below.

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