It's a dumb way of phrasing it. The author likely tried to reduce ambiguity, but ended up increasing it. My guess would be that "currently ever use the service

It's a dumb way of phrasing it. The author likely tried to reduce ambiguity, but ended up increasing it. My guess would be that "currently ever use the service" means "currently use the service, even if just sporadically." As you say, "currently use the service" would have been sufficient.