It really depends. evangineer's tl;dr comment was a decently accurate summarization of the content of the article. If you're meaning the typical "tl;dr [witty/sarcastic comment about TFA's author's shortcomings]", sure, those don't belong on hn. evangineer's comment seemed genuinely useful, though.
Thanks. I've been using tl;dr as a shorthand for this is my summary of the article in question. I now appreciate that not everybody sees it like that. In future, I shall refrain from using tl;dr and just summarize without any preamble.
