There have been plenty of reports of wool bearding as well as 80/20 and cotton that is not needle punched to a scrim.
batting lint problems
Bearding problem
Quilters Dream Wool Batting ?
Mountain mist batting
Then we we have also had reports of excess lint transfer which is different than bearding but can still be rather nightmarish if you are working with white/light batting on a black/dark quilt
batting fuzz transfered to top of quilt
Additionally there have been reported problems of getting "pokies" with W&N if it is loaded the incorrect way but it happens predominantly with longarms due to the much larger needle size. But it does occasionally happen with DSM
Tuffs of batting
What happened here????