Two days later neither internal nor external links are shown anymore. Is that a regular phenomenon with minus thirty penalties or is that something even graver?
18 months under penalty and no end in sight (as in gradual traffic increase Tedster is talking about). All that time links have been shown like nothing ever happened. Well, to be exact, the links in Webmaster Tools have become available only after my site already had penalty handed over so I can't really compare the set of links with pre-penalty levels. However, I do still see quite a few of those external links.