Recently I sent a guest post suggestion to a (German) blog. They accepted (after two weeks) and told me the publication date would be in 6 (six!) weeks. Maybe I have the wrong expectations, but from my experience that is an awfully long reaction time. I usually get an answer to a guest post suggestion within 48 hours and often the post is published the next day or within the first week at the latest.
That includes high traffic blogs like Jeff Bullas’ blog.
Luckily I hadn’t sent the post somewhere else in the meantime…