How I handle my plugins being cracked:
- I check audioz(few other popular sites) if I see a big spike in traffic (seems everything starts here)
- email them if my product is posted(they remove in 24-48hrs)
- remove the links via the storage site(uploaded, rapid, etc.)
--This is important since most sites use the same links.
- From my google dashboard remove all google searchable links
--So they dont appear on a google search.
- I also check the storage links on all sites that popped up on google search and send DMCA to the pirated site as well.
Sometimes i'd have what seems like 50-150 sites to go through but only a hand full of them generating real visitors or using unique storage links.
in my case I always seen a boost in sales, but after about 3-5 days all links are down and no longer showing up on google.
I also use tags like free download, free cracked plugin etc. on my site so when ppl do search for cracked versions my official site always pops up.