I think its a bit odd, but then I think the whole Facebook phenomenon is a bit odd too. I heard all kinds of news through facebook this year- engagements, deaths, pregnancies, miscarriages, births, new jobs, lost jobs... and it's weird to me. I'm getting used to it, just like I'm getting used to people saying "how did the cookies come out?" after posting something about trying a new recipe.
As long as it isn't something like "STBX is a jerkface meaniepoo and everyone should defriend her because her naughty bits are on display for anyone who buys her a drink..." well I guess it isn't all that bad. And double that for negative comments back.