I agree recount is good for keeping track of your own dps, it keeps you striving for more. However as I heal LFR, I don't tend to bother with recount, unless the group is having problems, if bosses are dying, then meters don't matter as a whole for the group I'm in.
Mainly I see recount being used as a *I'm better than you* tool, rather than as a constructive tool in groups. So long as stuffs dying and we aren't having a wipe fest then I don't care about meters in LFR.
In a guild raid settings, Logs and Recount are very beneficial for progression etc, but in a guild setting they are more likely to be used correctly and not as an epeen guage (unless in friendly rivalry of course).
As I said before, if the groups I'm in are having major difficulties on a boss, then recount can be useful to pin point problems, but if bosses are dying then recount is not needed in a LFR setting, other than for the individual if they are trying out new gear/rotations/talents etc.