Poker and Blackjack is the only games i know that requires skills, the rest is you need huge bankroll in order to yield some profit. Because slots and dice are all based in chance and probability. You may encounter lose streak especially when you increment your based odds per bet.
Sports betting can be also considered especially when it requires knowledge and research.

I can't reach your blog maybe because of bad internet network or something. But regarding traditional slots or skill games, I just believe that every game will always be good if it is accompanied by skill. If your choice is only about traditional slots or skill games, then at least it is the assumption that traditional slots are a game of luck without having to have skill, while playing solely on the luck factor is not a good thing in gambling.