You can see all listed coin/tokens on UNISWAP on here.
https://coinmarketcap.com/exchanges/uniswap/from CMC, we can see there are ~40 coin/tokens listed on there (5 of them don't have any volume anyway). I don't think it's scam or not, but rather about pump and dump coin/token on UNISWAP
How do we know if a token is actually a scam? Do we go by the volume of of the token in circulation? Should we determine by the white paper or by the team behind.