I'm less convinced on the necessity of Imogies personally, not because "we're a blind forum", or anything like that, just because I tend to think that either one should be able to explain one's point in text adequately anyway, or use imoticons instead (people have doubtless noticed my fondness for smiling imoticon).
And because I've seen too many posts kicking around which are just heart wink heart heart rainbow heart roll eyes or the like.
But hay, if this is doable, there's no reason not to try it if the facility is there, albeit if it isn't I won't be wishing to paste too many sad faces .
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)