User blog comment:Guchokipa/I have no idea what people mean when they say this/@comment-38248245-20191224122907

wof means walls or floors, and sew is for sewing mechine. as to why (walls and floors are not worth a den beta, only half a den beta. so people dont want them as much as other den betas. plus if you want to show case your den betas walls or floors are useless becuase you can only show one at a time. sewing mechine are not den betas at all but tons of people mistake them for den betas. so again there of less value.) hope i was of help :D