Even though the mere mentioning of a name is probably harmless, I think e-mail would be preferable to be on the safe side. The Swedish text in red near the bottom of each thread roughly says:
Please note that at Anbytarforum you should only write about deceased persons. Postings about living persons may be removed without warning. Of course you can mention the names of living persons who are researching (or have written) sources that are mentioned.
It really should be included in the English instructions too! The text in red was added last year when the Swedish Data Inspection Board had criticized that living persons had been mentioned on the board without their consent, and I guess nobody thought of the need to add information in English at the time.