Currently, the tags use the abbreviated form, which stems back to the discussion here:
Tag Synonym Request: [PS1] -> [Playstation-1] ; [PS2] -> [Playstation-2] ; [PS3] -> [Playstation-3]
However our current stance on tag names/abbreviations (as far as I can see) is to only abbreviate when a tag doesn't fit within the 25-character limit, as eloquently explained by Grace here:
How to tag: use acronyms or not?
The argument 'for' abbreviations has always been Search Engine Optimisation (SEO) (and a little... ahem, subtle nudging from Jeff). Sure, more people search for ps3 over playstation-3. By that same note, more people simply search for xbox instead of xbox-360 or xbox-one.
I don't think it's as big a deal as made out when it comes to PSX vs Playstation X, they're both pretty ubiquitous.
So, should we reverse these synonyms?
- ps1 -> playstation-1
- ps2 -> playstation-2
- ps3 -> playstation-3
- ps4 -> playstation-4
- psn -> playstation-network
- ps-vita -> playstation-vita
If there's any I've missed let me know.