Oh, didn't see it before, that you will burn your tokens. Guess it's a smart move because 100,000,000 JSB is too much 
I think it can increase the value of each JSB... Definitely
As I can see, they are planning to reduce the total supply to 12 000 000 JSB until the middle of September 2021 (https://jsb.foundation/burn-roadmap/) I think it can increase the value of each JSB... DefinitelySounds really good, as for me