I reckon anything goes with ur R10k, so whatever u trade, be it shares, warrants, ssf, long, short. The idea to me is not to trade differently but to trade ur game. that way all of us can maybe learn sumthink.
The reason why it should be a seperate account is that if its in ur main account then its quite easy to pick the winners and let the losers fall on the side. Not that I suggest any of the esteemed forumites will ever do that, gosh no!