I agree. I thought the writing was really poor and very hard to follow. One moment he's talking about losing his hearing, then his vision and then having Epstein Barr.
That being said, it seems like a pretty interesting story, good for him for fighting through his problems!
I think there's room for the perspectives offered by both formal and informal writing.
Given the informal context, reminiscing about first job interviews with friends, I feel that the author wanted to share that setting with us as readers.
It may not have been the same decision you would have made, but take it as a chance to learn a new perspective rather than opening with hard criticisms.
I disagree, I don't think the style was informal, I think it was simply poorly written. There is a difference between the two. The blogger never purported to be a good writer, so I don't fault him for it and I was able to get the gist of what he wanted to say, but it wasn't well written..
That being said, it seems like a pretty interesting story, good for him for fighting through his problems!