Here is a rewritten description that's more engaging and concise:

"Join the #ETFvsBTC campaign and share your expertise! 🚀

We want to hear from you! Compare and contrast Bitcoin ETFs with direct Bitcoin purchases, highlighting the pros and cons of each option. Share your valuable insights and help guide new users in the cryptocurrency space.

Participate and win up to 500 FDUSD! 💸

Don't miss out on this opportunity to share your knowledge and get rewarded!"

This description is shorter, more concise, and includes some engaging elements like emojis and a clear call-to-action. It also highlights the potential reward, which can motivate people to participate.