I think other than that the most frequent issue you'd have would be things like multiplication * being rendered, but I'm sure you could math your way around that.
If it were a two or three person thing, then sure, I'd agree there are better ways to play it. But with ten or more submissions, the odds that any bot will actually win money over the long run goes down dramatically, I think. If you bid at all, you have to win the bid or lose money. The only time I think you could realistically make money is if you bid only when facing a bot you know will not bid back (and the bid is under 1.00).
I don't think there is any general strategy to ensure you make more than not ever bidding. If I were allowed two entries, I'd make one never bid (A), and the other always bid up .05, no matter what (B). That would ensure that all entries who play against B lose some amount of money, while A sits at zero.
There once was a man called Doc Seuss, whose rhyming and timing were loose. But we love the green eggs, and ham from pig-legs, so much that his books reproduced :D
@Mego Normally I'd agree with you, but these aren't exactly "modern features" I'm talking about. It'd be more right to say it doesn't support a lot of legacy features in this case