"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~
In fairness, the tweet you linked never claims to have made the artwork. It just says "This is my tribute to Dogbomb." You made the assumption that meant the creation of the artwork. It is also possible that the person merely meant posting that in remembrance and changing their profile pic was the tribute, as has been done by many other furs. e.g. https://twitter.com/stinkycollie/status/1114301752428384257 https://twitter.com/5280milesishot/status/1114313068832534528 https://twitter.com/ChocoFloof/status/1114294525219016704 https://twitter.com/HeytharHere/status/1114317709661990913
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~