Whirlibird, one might wonder if an administrator from another internet forum altogether is masquerading here under yet another of his many IDs. A basic principle of human behavior is that some attention, no matter how negative, is preferable to being entirely ignored. These were the kids that stood at the freshly painted wall with a crayon, just waiting for mommy or daddy to see them before actually coloring on the wall. Trolls go elsewhere when attention is not forthcoming. They don’t learn that they get more (and better quality) attention by participating in socially acceptable and cooperative ways.
In your case, it does not matter that you’ve been very vocal at times when acknowledging and denouncing police corruption. It’s all about the paragraph above.
"Ye hear of wars in far countries, and you say that there will soon be great wars in far countries, but ye know not the hearts of men in your own land."