@eXceed69 Hummingbird is like a spam tool. I wouldn't recommend it to anyone as you might get your account suspended very soon!
Twitter.com did not gave me that great volume of traffic others have acquired. With my 2,800+ followers, i only get about 10-15 referral traffic. Is it worth it to continue?
Yes, i have around 15K followers and i easily get 100+ referrals. try getting more Rt's it will surely help!