Basically unless you know some people in the real world with a disposable income large enough, your probably not going to get many referrals. I post here a lot and have many times gotten "Helpful" and "Informative" ratings for my posts, but I have yet to get a single referral in 3 rounds of referrals thus far. Just posting here isn't going to get much attention.
It's just the way of it. With around 150,000 Tesla owners now and about 25,000 sold per quarter, there are going to be a lot of people in every referral program who don't get any referrals. Getting some referrals would be nice, but I've pretty much accepted I may never get any referrals. I never did any good at selling those candy bars for the school fundraisers either. We ended up with candy bars around the house for months.