A successful blogger has many skills. Notice, though, that I used the word “successful”, and the title says “long-term blogging success.”
I’m going to eliminate things like coding skills and graphics skills because they’re not necessary for your success. If you need them and you don’t have them you can hire someone who does.
And I’m going to eliminate things like writing skills and creativity because, while they’re helpful, the levels necessary for your success vary from audience to audience, and both can be trumped by your skill at engaging your audience.
So what does that leave? Conversation. The most important skill you can have for long-term blogging success is to be skilled at engaging in conversation. Easy, you say? Not so fast....hanging