New features are usually great, right..?
The only problem is they add up over time, turning something simple into something complex.
And complex things can become complicated.
And unfortunately, with the current mutation system, which is pretty much totally random as far as I know, only bad mutations seem to sprout.
Now, this will hopefully be fixed in version 3.0, but even so....
As a mere oppinion, I think that if someone decided to run an older version of DarwinBots, before Poison, and Venom, and such were added, as well as the current version of DarwinBots, the older version would have more good mutations then the newer.
So, for more "good" mutations, we either need a better mutation system which has more of a chance to make smaller, more related changes more frequently then larger, more drastic changes....
Or we need to make less commands. Which could be very difficult.
Or, on a third hand, we could consider it blessing that good mutations are rare. (Though, if you read another point I recently made, then hopefully you've figured out that good mutations can die off before they even start, thus making a mess of the whole natural selection idea.)
As yet another option, we could consider it a curse, and do nothing about it at all, and hope that programming methods will evolve in such a way that actual genetic mutations won't be needed for a species to "evolve."