'optional tags' (on this 'new Topic' screen, seems limited to 5 specific & useless bits of text

The ‘Topic category’ above allows “APS”, but prevents any ‘tag’ mention of “Sensitive Data Shield”, or even ‘Privacy’ !?! It seems to allow only 5 very specific but unuseful tags.
In my previous post, a double asterisk (**) unexpectedly causes nearby text to be forced into a ‘bold’ font. (but not here.)

You may be able to create new tag, though I don’t think it’ll help in any way here.

“**” kind of things is like markdown formatting; you can google it and see.