I have never believed that tether was a stable coin as they claimed, so many people bought the idea that the coin was a stable coin but now look at what is happening. It is better for you to invest in a coin that you can be sure that you will make money from instead of putting it in a coin you think will always be the same price and then it ends up going down.
That is the thing with people, they do not tend to do some pretty good diligence and they just take in whatever they are told most of the time. Tether was actually meant to be a stable coin pegged to the dollar, which is meant to make 1USDT equivalent to 1USD, however, over the years, there has been some issues revolving around the stable coin tether as well as the team with the idea that tether is just being printed out of the blue to get the market pumped. That is something that the team has never come out with proof to deny and have refused auditing which is something that should be very important for transparency anyway.
