There is a difference between want and need.
When a sub has been left alone for a long while without the benifits of subspace, you may think you are helping through a computer screen, trying to give them something they havent had for a long time. Your actually just tormenting them by reminding them of what they havent got in the real world, its really painful psycologically and emotionally you can feel yourself ache for it. Trying to help a sub in this way, i acknowledge good intentions however the effect is quite the opposit for some, i include myself in that. It is extreamly sadistic and towards the hard end of the scale mentally, this might not be something you have considered and why i do not do online only. Its being reminded of something you have wanted for a long time and having it flaunted infront of your face but just out of reach.
(just my perspective)