There have been a couple of heated discussions on this recently. In one case I think the credit given as an "inspired by" would have been acceptable, but in another case someone was on the Hive Watchers blacklist because despite using quotations, they decided it was still plagiarism as did some others. Perhaps because too much of the post was quoted work compared to their own writing? Then there is what is called spinning. At what point is something no longer spinning. Changing the wording a bit is probably spinning, but how much is information repeated across the board and throughout the ages! If you put something in your own words, could it still be classed as spinning because it's been said in other ways before?