i dont think it will go "bad" but it will get dry after a while which isnt really fantastic, as long as you keep it a little dank it shout stay good for a long time
if its gross bud with lots of shwaggy stems and overall bad quality Ive found it to burn. If you get good stuff though and dont take rediculously fat rips every toke then it shouldnt be that bad at all.
If you leave it even the slightest bit wet, it will get moldy. If you smoke moldy bud you will get a lung infection which is extremely painful and there is also a somewhat high lethality. the mold generally looks like little yellow spores.
i've heard that those new to smoking should smoke through their nose the first couple of times until their body gets used to it. either that or through their butthole.
If you don't want it to get moldy, just keep it in something like a glass jar, nalgene jars, wood boxes, something that will get rid of the moisture. Keeping moist/semi-moist shit in a plastic bag is NOT a good idea.
my friend rolled a J and lost it in his room, found it 9 monthes later under his bed, and the weed was all brown and nasty. So over time... yes, it does go bad. But why would you possibly have it over a month. Spark that shit up!
over time it loses its smell, dries up, not at good, may taste not as good.
first time smokers have a virgin lung not used to the hot temperatures of smoke so it tends to burn a lot the first few times. after a while it should go away unless you take too big of hits than you are accustomed to.
why wouldnt you take rediculously fat rips. i triple it every hit. but ya, the stemmy shit does hurt like a mother fucker. and deep in the core of the bowl can burn a lil too.