Time based proof of stake inesorably degenerates in a pyramid scheme.

Masternode based proof of stake provides the base for commitment however once enough masternodes have been sold someone usually runs away with the money.

PoW coins can still be scam traps, but avoiding the ones with premine is already a good start. PoW however is more vulnerable to network attacks based on high hashrates dumps, while a serious attack on a PoS coin requires a change of hands in someway and much more effort to pull off.

Overall I think a currency which purpose is to be broad needs PoW. While a token that revolves around a particular niche is better off with PoS. The irony however is that a lot of tokens started as PoW and plan a PoS switch to sustain scalability…