Whilst I get it that the whole rational of BSC is to motivate people to get a bit of terrain on the board, it probably needs to be a bit more specific than the last round to function as a competition.
Finding a sweet spot for a theme just broad enough to lure people in while not being so broad that someone could enter pretty much anything and say 'yeah well someone do whatever the theme is there' seems to be quite tricky. What I am saying is if there is going to be a theme, it should be an entry requirement or possibly subject to some sort of handicap.
We all get to see the fruits of others labours, so maybe it's just a problem in my mind only.