This is a total lie, literally. Most of the sellers on the first page reply instantly. I would do the same if I'm not sleeping. If you really think like a buyer, ask yourself what you would see when you search for a service. It's going to be an attractive thumbnail, not that green dot. The next thing you're going to check is the budget. I have bought three gigs so far, and I never toggled the "show online sellers" filter.