Just for reference: You don't need to do anything to get this "properly listed" on Plugshare - they automatically import Supercharger details direct from the Tesla website. I've asked them and this is by request from Tesla, who don't want people adding incorrect information (either accidentally or intentionally). This is why the 'Supercharger' plug type isn't available for manually created entries.
When they delete "under construction" sites, that's not by mistake - it's on purpose.
The downsides:
1) It's not clear that the reason the 'Supercharger' plug type isn't available is because they don't want them created. That results in people creating them anyway with different plug types.
2) People can't find supercharger sites which are under construction.
supercharge.info has pretty good coverage of this.
3) They don't synchronise that often - every few days, but sometimes it can be a couple of weeks after it goes live on the Tesla site (and sometimes it isn't live on the Tesla site until a week or two after the site *actually* goes live).
4) There are a small number of supercharger sites which are accessible but not listed on Tesla's site. The most common example of this would be service centres. These can only be listed with non-Supercharger plug types, which is a pain.