As a result, multipools are going to be fading away pretty fast. The profitability is shrinking rapidly in comparison to straight DOGE mining (and if that fails, straight LTC mining). They are a dying breed because pretty soon there won't be enough coins left for multipools to bother with.
KGW/DigiShield/whatever does nothing to prevent multipools. It actually *helps* multipools because it means those coins will drop in difficulty quickly, returning them back into their coin rotation. They prevent the coins from literally *dying* due to multipools, but their profitability is gone regardless.
What you say is true but that only applies if you sell the coins immediately. If you choose your spots it can be more profitable than straight DOGE mining.
Also dying coins are not a problem. If I understand you correctly you think that straight DOGE & LTC mining will still be profitable in the future?
If so whats stopping multipools to mine only DOGE & LTC? Even though it's just two coins the "profitability switcher" may still be applied.