That may be a literal interpretation but surely Q is not suggesting the military bomb social media. : )
Some of the memes have had jets at the top with multiples bombs falling on blackhat targets. The bombs have hashtags associated with the topics that have been generated as part of the Q discussion. Each Hashtag also has it’s own meme set.
“make it rain” could be referring to that overarching bombing raid meme and basically is saying to all the Q followers that it is time to release the dogs of internet war and unload a fusillade of all the memes that have been generated.