I toe the line here a lot. I can/will/do game the system when I can. I think a lot of us do. The house wins so much, it is nice to get a winning hand once in a while. HOWEVER. This pilot knew exactly what he/she was doing, and IMHO it was a low blow. I don't agree with the email tone and approach but this pilot deserves a little berating. You know darn well you can't fly for 48 hours after getting the vaccine. Get it on your time off for call in sick! Of course pulling some foolery to get Christmas off is gonna send a red flag up the chain...
That being said, this pilot is in a lot more trouble now that he/she sent screenshots of it that have ended up everywhere.