Most shares of this [Wayback/Archive] Pie Comic by John McNamee is is with the attribution cut off, no alt-text and heavy recompression artefacts.
The first is unforgivable: cartoonists put a lot of effort in their work, so sharing their work should at least include the attribution on the picture itself, and preferably the name in text and link to their original work.
The second is not surprising: the comic is 7 years old and published at (now only) 500 pixels wide, so her it is again but with alt-text:
The Wiert Corner - irregular stream of stuff 