A Memorial Steve Irwin wouldn't want

There was an AP story today on the discovery in Australia of at least 10 stingrays which have had their barbed tails cut off. Perhaps these not so well meaning people don't get that Mr. Irwin was a conservationist and this would be the last thing he would want. Why would anyone think that this was a fitting remembrance? The story mentions that fisherman sometimes will cut off the tails of stingrays if they get caught in their nets. Plausible explanation, doubtful.