Note that something is on the move.
The funnel top repainted from red to blue/black, has just been taken to Piraeus and reverted to KLELIA 1
https://www.marinetraffic.com/en/photos/of/ships/shipid:975003/#forward

Does anyone know why so many yachts are changing their reported use to "Houseboats" in the databases/registries lately ? Is it to avoid taxation ? Is it cheaper for the owners to register them as houseboats ?

Yes, Stelios - and named after his sister.

The name does suggest that it is either him or his family yeah

I'm assuming that she is owned by Stelios Haji-Ioannou

And with a very well known owner. You as a person with knowledge of passenger/cruise ships will figure it out I think, Clive ;-)

Perfect. My kind of yacht.