Meh, the droprate scroll increases a 0.24% (1/416.6) drop by 0,036% so the result would be 0.276%(1/362). Not that big of a boost, maybe in the long run but for the 30 minutes we get, it isn't.
And for the pets, most are 0.03% drops so with the scroll the chances would increase to 0.0345%. The boost isn't even a 1/100th of a percent.
Tho I do agree that the scroll should be limited to 1 per 3 hours for everyone and nobody shouldn't be able to stack them like vote books.