It feels weird jumping to someone's defense here, but it's been equally weird watching so many people completely mischaracterize what the grandparent (great-grandparent, I think?) comment said:
S/he is not the one asking for help. He is the one being asked for help. Their attention and focus is the one being interrupted (or at least that's what their first comment said, that they receive numerous requests from help from someone who sits directly behind them via chat). And on that note, I actually find myself taking his or her side on this. They are being asked for help by someone who sits close enough away that they can quickly provide an answer verbally and return to their chores/duties.
That seems more efficient than hammering at the keyboard given the recipient can very likely hear the sound of one's voice with the response to the inquiry for assistance.
Why are so many comments to this problem being presented as if this person is the one who needs their behavior rectified, when they are not the source of the interruption, but the recipient of?