Let me clarify myself:
BitCoin's total money supply is 21 000 000 coins (the inflation is 0 or negative if we eliminate the lost coins).
WorldCoin has around 260 000 000 coins in total money supply and it is thus similar than bitcoin.
There are however coin(s) that has not limited the money supply and then the money supply basically grows and grows.
The "current" increase towards these maximum numbers I am not considering as inflation.
For the short term, perhaps this doesn't make any difference but if you are investing in a coin for long haul (like for few years), the unlimited money supply will eventually make your purchasing power dropping drastically.
Think about USD - it has lost over 95 % of its purchasing power withing almost 100 years. It means, if you have saved money all your life and today you die at the age of 100, the 100 USD bill you put under your carpet is now worth of only 5 USD in today's terms. However, if you had put acentury ago 100 USD in store to gold bullion, you would have 5 oz of gold (correct if I am wrong) which is today worth of 6000 USD.
I do not say the coins that have unlimited money supply are necessary bad but.... It comes to the cost of savers. I am sorry but if I had to choose a coin, I chose a coin that has limited money supply. Then I have to leave aside some coins and start comparing all the other coins with other feature. To me, however, the limited money supply is the premise # 1 to even consider a coin.
Ok, but just to be clear so that we are not miscommunicating and for the good of others entering the conversation. Inflation is defined in economics as general increase in prices and fall in the purchasing value of money. The cause and velocity of the increase in consumer prices and fall in purchasing value of money is irrelevant.
You have to consider any "current" increase in money supply as a cause for inflation, but they are. You need to understand that you perceive inflation through your investment time which may not be equal to another persons investment time.
Let me give you an example. I build a coin with your criteria. A fixed money supply of 1 trillion coins. The reward will be 50 coins per block every 5 minutes. THis means that the reward will stop in 9,512,938 years.
Now, by your reasoning you should agree with this coin as acceptable because it is fixed and rewards savers.