I have done exactly what the help files tell me to, and a new profile has automatically been created.
I still think that this was a pointless exercise, and that such a simple change to capitalisation should be possible without the faff.
Of course, the other suggested merge of related person Sarah Pole has revealed yet another Tidd profile, this time Mathew Tidd, where someone has created a duplicate as per John Tidd for a Mathew tidd, her husband. As I am not the profile manager for that tidd, perhaps someone can propose to me a merge request to merge with my Mathew Tidd which has been in existence for some years now.
Beginning to wonder why I joined Wikitree…