It would be spam if someone was intentionally and regularly submitting linkbait content of the same format as this... but a one time conjecture about a YC company is fine. It's linkbait because everyone here likes talking about YC companies. This isn't the same slippery slope as the "Programmers and Sex" story. If the front page ends up covered with blog posts about Arc and YC companies, odds are there were just a bunch of good blog posts about Arc and YC that day.