The problem BuidlDAO solves

Current platforms are opaque and they is no proof of work platform in web3, communities depend on web2 platforms for looking for their potential member's contribution in crypto space.
BuidlDAO allows people to post their products and other folks to upvote it, moreover being decentralised and DAO driven every project goes through validation from DAO members. This also removes rugpulls and spam from the space.

Challenges I ran into

Brainstorming how to make sure data being uploaded is legitimate moreover building community is tough.