I have shared 15500 tweets so far. This was a personal account, of course. 3 years ago I started writing tweets in English. I shared tweets every day for more than 100 days. But would you believe that my followers did not increase from that? I did it with something I had never seen before.
I did it by helping people or asking people for help. That's how you meet people. I can say that my followers increased not by producing content but by meeting new people :)