if the content thief finds your article and connects the dots
DMCA complaints have your address attached, the dots are already connected so the simple act of filing a DMCA complaint, just like any other legal action, can be dangerous because it exposes your address to the defendant. Some scrapers that were put out of business have been known to show up on people's doorsteps with bad intentions and got hauled off by the cops. That's not going to stop me from filing those DMCA complaints as I've nuked a couple of people's livelihoods in the past because it's me or them, and I certainly won't go down without a fight and since they already know who did it the dots have already been connected.
However, sgt_kickaxe is probably right that publicly boasting about it could set some psycho off the deep end if they figure out you're the one that DMCA'd them and are now publicly boasting about it and humiliating them further.
Not like they don't deserve it.
FWIW, I've actually been threatened just for stopping some clown from scraping my site, not even filing a DMCA, just blocking him from crawling.