You can try it but i think you'll be wasting your time IMO. Not many ppl once get their visa will come back to this site and won't have time to think of other once they have their families here.
This topic is almost 200 pages and i have yet to see someone who still post here from pages 1 - 10.
Just to give you an idea there was Facebook group open 3-4 days ago and really only 5 ppl joined! To get proper Media attation Facebook is the way to go these days but you have to get 10000 or so ppl before anyone is going to pay attation.
So instead of creating 10 different group/sites focus on one