Yeah, why anyone would hang around when profitability is only 0.02+ per MH is beyond me

Speak for yourself.
Dogecoin profitability is "only" 0.03+ MH/s.
well, dunno about that: I mined doge at dogehouse/suchcoins for almost two last days with about 1.2 mh/s when doge was hovering at the top of the profitability chart, and exchanged equivalent is around 0.03btc, which is around 0.013 btc/mh/day