It's worth noting that I did not appear that competent to most people while I was homeless because I was so very ill. Although my condition is incurable, I'm vastly healthier these days.

My comments in online forums were frequently riddled with typos when I was homeless and often sounded like gibberish.

No matter how smart or well educated you are, being extremely ill will hurt your ability to perform. This gets compounded by situational factors if you are also homeless.