Is it dangerous to smoke pot while taking wellbutrin?
It's probably not dangerous, but not a great idea. For one, pot will very possibly decrease the effectiveness of the Wellbutrin. Pot smoking has been connected to depression, which may be solely because it is being used to self-medicate the depression. It's also hard to tell if the dosage of your medication is working if you're also using another drug that also affects mood.
Here are some articles that might be useful to you:
Infrequently Asked Questions About Marijuana Use
Marijuana: Can It Reduce or Induce Anxiety?