What are the disadvantages of USDT?

Could you please elaborate on the potential drawbacks of USDT? Are there any specific risks associated with using it as a means of exchange or store of value? How does its stability mechanism affect its usability and acceptability in the cryptocurrency market? Also, what are some of the challenges it faces in terms of scalability, security, and regulatory compliance? Understanding these disadvantages can help investors and traders make informed decisions when dealing with USDT.