I am well aware of coins with controlled inflation like BTC, where a finite number of coins will be generated at a controlled rate. Very recently I came across deflationary tokens where coins are destroyed whenever a transaction is made and they will end at some time.
My question is what is the purpose of creating such coins? Are they worthy enough to be invested ?
As for me, a rather specific concept. If you do not touch on some other "features", a key feature, it is also a disadvantage - a decrease in the money supply, which, with a noticeable volume of "burned" tokens, can lead to a forced increase in the price of objects that are sold for this cryptocurrency, due to immutability (and possibly and growth) mouth guard, and a decrease in available funds.