Stickfight
Expert
Having spent some time hunting in Co and AK I have to say that that is one of the most uninformed opinions on the subject I've ever heard. A guide gun in .45-70 will stop a charging griz an eternity before pepper spray. Perhaps you forgot the sarcasm font or purple?
No purple just facts like this study and this study and this study say it is more effective and the USGS and UWFWS and NPS council their employees to carry it whether or not they also carry a gun. Alaska Fish and Game also seem to believe it is effective, more so than a gun in many cases and so does their DNR. And here is the original paper from Montana U that kicked the whole bear spray thing off.
Have you found problems with it?