There's been a few updates lately.
Not sure how old it is, but for examle the profile pages have been updated recently aswell (
https://bitcointalk.org/index.php?action=profile).
Recently created topics ("Show the last topics started by this person.") were not available via direct link before.
That feature was recently added. Before that, there was a 'hidden' public page, but it's easier to check this way. Actually that's why it was introduced, so that anyone could easily see and report a duplicate thread.
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