Personally, I find it very difficult to feel sympathy for Whitney. Lucy could be a horrible, vile, selfish, bitchy brat, but she was, IMO, a good person deep down. Like many other EE women, Lucy used a bitchy/nasty/cruel facade towards people so as to hide her weaknesses and insecurities. Like Janine, Shirley, Kat and Whitney herself, Lucy was deeply, deeply insecure and sensitive. All these women put on brassy/feisty fronts to hide the fact that they're lost little girls, who don't really understand life, and don't really like it.
Anyway, I was bullied for several years in school, to the degree I eventually left, but I would never ever be so vile as to make a note for my deceased former bully saying "Rot in Hell", even if I didn't mean to drop it at the church.
I firmly believe people, no matter how vile, should be given peace in death, which is why I'm against capital punishment. We should suffer (if we deserve to) while we're alive, not after death. And if we don't, that's just too bad. There are several public figures I've loathed, but people celebrating their deaths, or destroying their graves, is unforgivably distasteful and immoral, IMO.
Lucy could be a truly nasty, horrible person, but nothing excuses Whitney's note at the funeral, IMO.