Ethical or not aside, I do not see how anyone can make the case that passing additional costs on to others by breaking the law is not selfish and inconsiderate.
In the US this is the law.
Quote:
Once a postage stamp has been used, it is a federal crime to:
1. Remove, attempt to remove, or assist to remove cancellation marks from postage.
2. Reuse a stamp whether cancelled or not.
If you have questions concerning the reuse of postage, please contact your local Postal Inspector.
Title 18, U.S. Code, Sections 471 and 1720
Quote:
Whoever uses or attempts to use in payment of postage, any canceled postage stamp, whether the same has been used or not, or removes, attempts to remove, or assists in removing, the canceling or defacing marks from any postage stamp, or the superscription from any stamped envelope, or postal card, that has once been used in payment of postage, with the intent to use the same for a like purpose, or to sell or offer to sell the same, or knowingly possesses any such postage stamp, stamped envelope, or postal card, with intent to use the same or knowingly sells or offers to sell any such postage stamp, stamped envelope, or postal card, or uses or attempts to use the same in payment of postage; or
Whoever unlawfully and willfully removes from any mail matter any stamp attached thereto in payment of postage; or
Whoever knowingly uses in payment of postage, any postage stamp, postal card, or stamped envelope, issued in pursuance of law, which has already been used for a like purpose—
Shall be fined under this title or imprisoned not more than one year, or both; but if he is a person employed in the Postal Service, he shall be fined under this title or imprisoned not more than three years, or both.
(June 25, 1948, ch. 645, 62 Stat. 783; Pub. L. 103–322, title XXXIII, §#8239;330016(1)(G), Sept. 13, 1994, 108 Stat. 2147.)
But times are changing here in the US. In some US locations, shoplifting less than $1000 of items is no longer considered a serious crime and stores do not interfere if people walk out with arm loads of stolen merch. <shrugs> Perhaps only caring about yourself is the new normal and I am just a chump for not feeling that way.
Don