Would that not stop veg multiplying? Growing patches of veg are sometimes an important part of the league sim, such as when bots have just had a big battle and the last few survivors are desperately running around trying to find food.
On the other hand it might reduce the randomness of the league, which would be a good thing. Plus it would speed the league up, although with the max bot speed of 180 I can barely keep track of what they are doing anyway.
Certainly putting the veg alga minimalis (agree with nums about the veg recognition for some bots) in the league settings as a default or something would be great. I'll try disabling the veg dna and see how it affects competitors.
EDIT
Light, I think a collsion value of 0 would be about right. A lot of bots are going to have a hard time with the new top speeds and might find it easier with a lower value than this but it looks about the same as it used to be then.
Eric, switching off the veg dna made me laugh. Looking into my crystal ball I forsee that forcing totally new behaviour patterns to arise. Predominantly symbots or food protectors winning hands down and ambush predator bots losing. Also a greater advantage to bots that stop by their food rather than bump it. It certainly would make the leagues interesting but would probably preceed a mass extinction event. Perhaps the sort of punctuated equilibrium that DB would benefit from. I will go with mass opinion on this idea.