[prmoustache]

That is quite a lot.

[oneeyedpigeon]

It's quite a lot, but I wouldn't put it in the realms of addiction. It seems to be quite typical compared to even the personal (i.e. non famous) people I'm following; the higher profile accounts I follow tweet multiples of tens per day.

[gonzo41]

Not for someone who's fulltime job is writing and reading fiction.

[paxys]

Writing 3 lines of text a day is a lot for a professional writer?

[acjohnson55]

It's really not