Be careful, long assault straws will be outlawed soon in cali.
You bet. I bought some large oddball serrated shears years ago just for blister packs. I wouldn't think of using a knife, one slip and I'd think that hard plastic would slice to the bone.
None yet! I oiled the blade the first time I opened it and cleaned it, and so far it's stayed clean. I'm kinda hoping to get some patina eventually though.