Hm... I don't do anything that intentional, like the hotel room 1508. Now I wish I did!
I do know that a lot of my stories contain references to Titanic, which is my favorite movie. I tend to refer to movies a lot in my writing.
I also like to include inside jokes and name minor characters after people, usually friends or readers. With all the medical drama I write, I hate having to come up with random names for medical personnel, so in Broken and BMS, I named most of the doctors and nurses after people who gave me feedback. I started Curtain Call in the middle of my Double Rainbow phase and named the first six nurses Dora (for double or double rainbow), Reyna (rain), Bo (bow), Allie (all), Thea (the), and Wei (way). In Secrets of the Heart, most of them are Beatles references.
My favorite form of passive aggressive revenge is to base characters on people who piss me off (usually in the fandom, but not on AC) and put them in unflattering roles. Broken and BMS, Curtain Call, and 00Carter all have some of those.