Sent my response in and got this:

Responses to the review of air weapons regulation will be taken into account as part of the review. However, due to the volume of responses, we will not be acknowledging each response individually.
Now if that means they have had 25,000 BASC members responding, great.

But if as I suspect they have had 25,000 RSPCA members responding, there is trouble ahead.

So another bump in case anyone was meaning to respond and hasn't yet.