That was actually a joke.
I personally am not a fan of this but I understand that in certain situations, with the deadline coming closer, prefabs might be necessary.
Sure I do download some models out of curiosity or to study them but in the end, especially if it's personal work, I'd rather create my own.
This is not directed at you or anyone in particular.
Over the time, I've just seen too many people using the same files(even full content library scenes, just rerendered) again and again and bragging...
Or people scattering other people's models which have a non-commercial license and not bothering giving them a hint of a unique touch and making money from those. I call those images "collages of other people's works". Not even crediting the people. That I can't stand.
Nature scans are the only things that don't bother me as they are created by nature and captured.
So I'm a bit sensitive on that topic.
Sorry for the rant, just had to let it out.