As stupid as this is going to sound, I think about this quite a bit in terms of writing a blog. I've wanted to do it for a long time and in the past people have been very kind and supportive of my writing. However, when I think about the reality of what it takes to make a successful blog, I get very nervous about it.
I mean, it's dumb because the chances of writing a successful blog is next to nil. And the way to exit the scene is easy: stop writing content. But it's the path that worries me. You need to write a lot of relevant content -- almost certainly more content than you can reasonably think about critically. You will be judged on that content. If you make a mistake or change your mind, then you can be treated very harshly. It seems that the masses have this binary view of their celebrities: genius or moron. The more popular you get, the more people have you in their sights aiming to plonk you firmly in the latter category.
For a long time, I've spent ridiculous amounts of time writing in safe havens like HN comment sections: because I truly love writing. I like thinking about stuff and breaking it down. I like explaining the insights that I find. And most of all, I like the fact that somebody reads what I write. I like thinking that I've connected with somebody else who I don't even know.
I seem to remember a set of rules for writers by Stephen King (although my recollection doesn't seem to match what Google returns to me). In one of them he says to prepare yourself for an unbelievable amount of criticism. It's this that worries me the most. I don't mind criticism, per se, but I don't want to have to deal with a reputation based on ideas formed from my prose.
"He's the dufus who believes that unit tests shouldn't test requirements. What a moron," is fine when I'm dealing with people who know me. It's down right terrifying when dealing with people who are potentially going to interview me for a job :-) A slight miscalculation in how you describe something, a popular misconception arising from rumours of your writing, or even just having a derpy day because you didn't think it through before you put pen to paper... And suddenly, you are the moron in the eyes of millions.
Like I said, it's putting the cart before the horse by a long, long way, but it still stops me from writing, which is a massive shame. Somehow I must overcome it (advice is welcome, BTW!)