I read it yesterday, and decided not to post it here for that very reason. I can live with a typo or two, but the error rate on this was so high as to make it difficult to recommend.
I agree. If you feel what you have to say is important enough for other people to read, put some time into shining it up, and making it readable.
Otherwise you leave yourself open to criticisms like: "If he can't execute on the small things in a blog post, then no wonder Silverlight is dead" etc.
Something this long shouldn't be written in a single draft. If it's worth nearly 10,000 words, it's worth doing properly.
TL,DR: Guy realizes he was a jerk at the start of Silverlight. Continues to be a jerk, but doesn't notice. Oh, and Silverlight is dead.