my guess would be another person forgeting to actually strain the "plant matter" out of it and letting it all dry and smoking that. im puffin on a 4 gram ball right now i made last night. sat over night and while i was at work, when i got home scrapped it up and it tastes great, after about 16 hours of drying. it also really depends on how long you soak it, i do batches in twos, one plate is for a quick shake, about 30 seconds, no more. that batch will be really light colored and tasty. sometimes almost a powder like plain keif. quick wash usually has a taste of the bud/ leaves it came from. then the second batch is a longer soak using the same stuff i just used. that plate will be really black and sticky, not as tasty but not really "nasty" either.