Streaming giants like Amazon Prime, Netflix, and Hotstar made a strategic move. They reduced the wait window. Sarpatta Parambarai and Jai Bhim (October 2021) premiered directly on OTT with global reach, making piracy nearly pointless because the high-quality version was legally available for a nominal subscription fee.
Isaidub, in particular, was known for forcing users to "register" or "complete a survey." This harvests email addresses, phone numbers, and passwords. If you use the same password for your bank as you do for a pirate forum, you will be robbed.
2021 saw massive economic distress. In rural Tamil Nadu and Sri Lanka (a massive market for Tamil cinema), paying ₹150 for a ticket or ₹499 for an OTT subscription became a luxury. The search term "Tamilrockers 2021 Tamil Movies download Isaidub" spiked in districts like Madurai, Trichy, and Jaffna.