seems like all coins can be at risk of scam, but for the largest volume coin I think it's impossible and also tether is backed up by 1:1 dollar and has been around for a long time compared to other stable coins.
- The purpose of Tether and its founding company is to optimally support crypto users, more precisely, they know bitcoin and altcoins will always go together and sometimes the price drops very badly, to improve and not lose in such times, Tether is an initiative to offset and increase trust in crypto. The user's benefit will be sheltered, the benefit of Tether is the cost, just calculate the volume of circulation, Tether's market is really stable, the exchange rate will be very difficult to get wrong due to very strict demand and management.