Now there are a lot of fake NFT, how can we avoid this
My own method on “How to avoid buying a copy of original artwork” is a golden rule where I always want to check if the wallet that issues the artwork is really associated with the author eth wallet. For example, on OpenSea or on Rarible you can check from what address the original artworks were created before you buy an art piece on the secondary market. In that sense, the most important thing is to always check the creator wallet of the artwork we want to purchase.
Yes I would also support this. May be showing the trust factor or rankings from coingecko or coinmarketcap for the underlying NFT should help us to get an idea of what the actual NFT is worth of