all these people voting for this petition is all very well and it looks impressive because naturally only people who agree with it vote.

All the people who want to leaver cannot vote to cancel out one of the stay votes so no matter how many people vote on the petition it means absolutely nowt.
All the people not voting are the people who in a referendum should be those who wish to ,maintain the status quo. They should have been counted as remain in the referendum but weren't because Blair changed the rules to suit himself and Cameron kept them.