[iwwr]

The inflation rate over time will actually tend to zero, since each additional 5bn coins represents a smaller proportion of the total amount. A constant quantity over time translates into a decreasing rate of inflation.

[mpyne]

That's not accounting for lost coins (either because the wallet is lost or the owner is prevented from spending them).

The idea in the github thread seems to be that the 5% inflation should approximately cancel out the unknown loss of coins that would be going on.

[iwwr]

That's also insufficient over the long term since coins are lost as a proportion of the total per unit of time.