jetsson Great question. Ethereum also has unlimited supply with inflation. 140,000 ETH was created last 2 weeks or $480m in dilution. But I don't think ETH is a bad investment, there's more to its value than inflation.
Why is supply up 90 million? Because 210,000 users with MPH had investments in BTC, ETH, TSLA, AAPL, XAU etc. that returned a net of 6.7% the last 2 weeks.
The preceding 2 weeks, supply went down by roughly 90 million. If you monitored 2 weeks earlier, would that have made MPH a good investment?

The 1.49b supply is not final, a big portion is the estimated value of open positions. Only 33% of supply is from cash balances. If users make bad trades and/or existing positions devalue next week, supply will be down again.
MPH is not meant to be like Bitcoin, it's designed like USD, GBP, or EUR. US money supply increased by 300 billion USD in March. All existing USD is still useful. But money managers would recommend putting USD into bonds, savings, assets and keeping some in cash. The same is true of MPH, the incentive is to use it and invest in our 650+ markets.
What about if you just held MPH the last 2 weeks? Uniswap shows the token price is up 15% and liquidity is up 50%. So you can buy/sell 50% more MPH at an even higher price. However price stability and liquidity is our priority, not appreciation. For example: most MPH purchases happen on our fiat onramps rather than on Uniswap. We do not recreate that buying activity on Uniswap.
Making a judgement on investment quality based on one factor in one small snapshot in time seems a bit flawed. Try to get a picture of the tokenomics or just focus on the more powerful fundamental factors. If you think enabling users around the world access to global financial markets, in ways that haven't been possible before, is genuinely useful - then Morpher has a bright future and holding MPH should not be a problem.