For info - I’m a DWG member and therefore do occasionally hide spam diary entries and report the accounts that created them to the admins. Usually these are selling various dubious services and have no connection to OSM.

Whilst hiding a couple of spam diary entries earlier today (5 December 2019 at around 13:50 UTC) I did notice the diary entry that the account that you refer to posted and did initially think that it was a bit spammy - it had no connection to OSM and linked to a site maintained by a search engine provider. However, I didn’t report it or hide it at that time. I did check the site edits, and noticed that https://www.openstreetmap.org/changeset/77977186 did actually seem plausible and commented on the changeset as someone was already wondering with the edit was legitimate or not.

I’m guessing that someone else looked at it and thought that it was spam, and the user was deleted shortly afterwards. That wouldn’t be too surprising - I had to check twice before I thought that it wasn’t worth hiding, and someone else may have come to a different decision.

If solmaps2 believes that there has been a mistake, I’d suggest you or they contact the admins to explain what has happened. The FAQ mentions a support address (see https://wiki.openstreetmap.org/wiki/FAQ#How_can_I_close_my_account.3F ). Another option would be to ask about it in #osm-dev on IRC, although that’s better suited to more general questions rather than specific individual account ones.