Not that trying to repackage and possibly resell existing work isn't a little lazy and borderline scummy, but your filter list "brands.txt" is MIT licensed.
You could always release the plugin code MIT and keep the brands.txt file proprietary or under a more restrictive license if you don't like what they are doing. After all, you did explicitly allow this.
To be honest it just felt like the right way to do it. I also never expected it to ever get any amount of traction. The fact I got more than 10 people to run it is thrilling.
You could always release the plugin code MIT and keep the brands.txt file proprietary or under a more restrictive license if you don't like what they are doing. After all, you did explicitly allow this.