Unsurprisingly this has arisen afresh in the context of the website upgrade, and in particular whether, if there were agreement on one style, software could ease the change and future uploading. That technical aspect is the only thing that makes it necessary to review this question now.
In my experience, auto-alteration from lower to upper case can work, though when this site introduced it in c2014 it did not work well enough and was soon abandoned - mainly, I recall, over treatment of non-standard letters, which we no longer use, and punctuation (hyphens, apostrophes, full stops etc) as well as those categories which are not ship names (eg ports, funnel logos). It does not usually work at all properly the other way around, because the software cannot identify where the capital initial letters should go. The grosstonnage-based vessel identification box under every photo uses this, producing logical abominations like "Cma Cgm L'etoile", "E.r.camargue", "Xxvii Syezd Kpss", "P&,osl Picardy".
Since 2014, each time it has been discussed it has just revealed a lack of willingness to accept a change to a common approach by one side or the other, even though that would look more professional and serious for the site.
For the record, the following is copied from yesterday's thread on Members' suggestions for improvement of the website
Pieter InpynSuggestions for improvement of the website:
1) Conversion of all vessel names of all the posted photo