Got 700 likes for my idea on facebook

I shared my idea of building a PC part picker site with ability to check prices from many local PC stores within Vietnam on 2 facebook groups.

Got 700 likes, 329 comments, not sure how many views I got.
Almost half of these comments are disapproval, the rest is fine.

I think the numbers is fine, the idea is quite good.

What do you think about it?
Should I continue with the landing page OR trash the idea?