Hey cheers,
In terms of posting you can always do both, on two accounts if necessary.
It's worth exploring all the avenues certainly, and if you did want to get a game up and running, Hive would be a good candidate - eXode is a risky investment, but it dow look very interesting and potentially a lot of fun, the cards are nice.
Splinterlands is not unlike Poker once you get into it and see the same opponents every now and then!
I tend to rely on Bittrex as my main exchange, works fine!
RE: What are the different ways to earn Hive?