Usually such projects have unlimited emission and soon depreciate in value. Remember the project on Solana "go and earn". At that time there was a lot of hype, but in time this project was forgotten. Where you have to do something and earn money, it is good only in the early stages. Later it will be very unprofitable.
The depreciation in values of these projects is mostly cost by the volatility of the market and the long red candles formed in the charts. Every investor wants to be on the safer side, no time to waste but 100% focused on good projects. Profits will not come if we're not able to crave for promising projects in the system.
Projects are many and it's our job to ensure we are able to spot good projects in the system. Solana is a good project to invest in when one have solid background of both technical and fundamental analysis.