Tildes 'style guide' for headlines

I posted an article. Between the site headline ("Scrutiny of Social Distancing Policing as 35 of 40 Arrested Are Black") and the actual HTML <title> ("The NYPD Arrested 40 People on Social Distancing Violations. 35 Were Black.") I thought the title was more descriptive, so I used that.

And then when I reloaded the main page, the topic I had just submitted looked a bit off. It was missing the trailing period. I had typed the headline in, instead of copying & pasting it, so I assumed I'd just left that off. I went to edit the title (since that's possible for a few minutes after submission), added the period, clicked save, and...it was still not there.

It seems like there's logic built in to the site that will automatically strip the trailing periods off? That's understandable, I can see the desire to have a uniform journalistic style for news-type headlines (@Deimos has mentioned before, for example, wanting to standardize on "Apollo astronauts land on moon" sentence case over "Apollo Astronauts Land on Moon" title case)

But, to the extent we have such a 'style guide' enforced, I think the usability could use a bit of improvement. Editing something, even if it's just to add a trailing period, and seeing my edit not get saved at all, is really weird. Maybe a pop-up telling me what's changed, or a entry in the topic log, or something? Right now that little "no periods at the end of headlines" rule seems baked in to Tildes in a way that's not at all transparent or discoverable.