I post here from my phone all the time. We all have different lifestyles and different working situations, that others won't always understand if they've never experienced our own.

For instance, I spend a good deal of time on my job, sitting and waiting to meet with various people. Not knowing exactly when they will arrive, as appointments are fairly loose in my business, I have taken to Mingling while I wait...which doesn't tie my phone up or cause distractions to those sitting around me. I also typo freqently, and while I usually try to edit them when caught...my client takes priority when they walk in the door.