Only saying and/or thinking good things about someone after their death is a NORMAL HEALTHY RESPONSE. It's actually a tool our brains use to keep us from feeling guilty about something we had no power over. We need that. Every time a celebrity dies some of you care and some of you don't. That's fine, but some of you feel the need to bash the people who do care. Stop it. Sometimes people need to mourn even if they didn't know someone. Judging people in mourning is ugly. If you don't understand, post an unrelated meme or statement about how your day went. Right now I think it's Mufasa explaining your hometown region or college campus to Simba.
So, yeah. You should probably think of that next time you want to give someone else shit for "bandwagoning" on paying respect to someone (a celebrity, namely) who died.