It gets decarbed upon vaporizing it..you only decarb products meant to be ingested
Any form of decarbing prior to smoking is unnecessary degredation. Cbn is not a direct product of thc breaking down and this has been shown time and time again..it increases from storage from a chemical/enzyme/metabolic reaction, its not clear which....this is why it(cbn) increase even in resin extracts stored in freezing conditions, not proportional to thc loss
Cbn is not cbd and as has been mentioned causes much of the confusion because it does alter the high..but its not cbd and it won't feel like a cbd rich bud
Cbn causes the burnout feeling after smoking all day, it causes a dirty high that some like and describe as dreamy rather than dysphoric foggy high that leaves you mentally confused, unable to do a basic math problem and contributes to the short term memory loss...
It does change the high, in ways some people prefer...imo only on indica doms...
If its not clear I agree with 2shim.....decarbing has nothing to do with anything being mentioned.....
Thca at room temp enclosed in the dark should be fully decarbed by 120 days or so...keep in mind it decreases exponentially based on its half life(of I believe 35 days under these conditions)....just fyi