Not exactly the same issue, but you reminded me of something odd I’ve noticed. I’ve had Trakt profile links on other forum users’ profile pages link to my own Trakt profile on multiple occasions. Sometimes renewing the page would do it, other times I’d have to close my browser altogether before expected behaviour would occur.
The issue is still happening for me: the “Trakt Profile” link on my forum profile still redirects to the wrong Trakt account, without the final underscore.
Since another user also mentioned odd behavior with forum profile links, it might not be limited to my account only.
Would it be possible for someone from the @support team/devs to take a look, or let us know if there’s any update on this?