They would have that stickered on them too, yes, though they aren't part of the ESB ecars network (hence why for ones like this I've the site as operator).

Probably ease of install, ESB have a box a few metres up from it.

I've been to pretty much every fast charger on the island.

Updating details on electric vehicle charge points. Source is self (I guess? I've photoed any I've visited / used - fees, branding, connector, output's fairly consistent).