Hi @slove892, I’m the engineering manager responsible for Envato Elements.
Thank you for flagging this problem. 
We spent some time yesterday investigating what was happening. We discovered that we had accidentally introduced a bug that caused captchas to appear for all users, not just the ones breaching the Fair Use Policy.
We shipped a fix for this, and download behaviour should be back to normal. 
Thanks for your patience, and apologies for the disruption.
P.S. for the folks interested in the technical details, here’s a graph showing captcha behaviour over the last 72 hours:
