A python script to visit random scraped form directory websites or just having it request invaild pages if you want the logging to be least compressable.
I calculate with 50% reduction from compression (After the required back-ups to comply with the law the number will be much worse for the ISP). That somone on VM 500Mbits using less than 10% of their connection for this could increase their log size by 200GB per day or 73TB over the 12 months.
You know, because of the... unpleasantness.
But no worries, you go ahead with what you're doing, UK. Good job. Maybe IBM can offer some technical experience in this area.
And the government would just ignore them because of lobbying