I already mentioned somewhere that PESP is not yet listed on CoinGecko, PESP is currently only listed on Exbitron and that exchange not yet listed on CoinGecko, therefore PESP not yet listed as well.
Tether is set automatically when you install Bulwark explorer. Therefore it is temporarly set to Tether, as soon as PESP is listed on CoinGecko it will be modified.
I'm not sure where is the scam on that story.
If you want to know PESP current trading price, you can check Exbitron:
https://www.exbitron.com/trading/pespusdt