The supported hardware page lists TP-Link (Kasa) devices as compatible (https://github.com/WebThingsIO/wiki/wiki/Supported-Hardware). It is my understanding that this is no longer true, as TP-Link has locked out all but officially approved systems.
I see Home Assistant no longer supports Kasa devices (https://alerts.home-assistant.io/#tplink.markdown)
Does WebThings support current Kasa devices?
If not, what other WiFi compatible plugs from the supported list can actually be trusted to be supported?