I'd imagine it's the Mods only who are able to amend existing posts
I'm sure the States people will confirm whether the 'P' in EAPG is more correctly 'Pressed' or 'Pattern'.............although it probably doesn't matter, since we know what is being implied, but it's a fact that much confusion results from inappropriate use of words .
Since forums like the GMB are global, then probably best to stick to tried and tested descriptions rather than local or personal preferences.
'Depression' is probably best confined to the States facories we've already discussed and which was made in the 1930's. Nothing wrong with sun purpled though, and everyone should know what that means, and the other comments you made are self-evident.
If in doubt, then a more detailed explanation of features is preferable than not enough, plus, of course, good pictures.
Like anything else, pressed glass is often datable, approximately, by things like overall design and style and by shape/nature, none of which is infallible since as you'll know many styles were copied and made over a long period of time. Try some books on pressed glass, if you don't have any that is, but with a popular item like cake stands I guess there must have been a zillion over the years, a high proportion of which will probably defy attribution/provenance.
Sorry to hear you're 'always in a rush', hope you don't drop the glass and break it