the FUD is unwarranted even if we keep the 1MB limit ( which we aren't ) all that would really do for the foreseeable future is price out mirco TX's and bring the TX cost at about 10cents, buying over priced coffee is still feasible, and we are still undercut paypals 2% +50cents TX fee massively
Bitcoin is a
decentralized publicly auditable settlement system. That people would pay to use. You can use it for 0 fee but it will take longer, its not designed as a payment processor. Satoshi chose security over performance because of
decentralization.
The time to increase the block size will be when 0 fee tx takes longer than 5 days.