No names to avoid Name & Shame and protect the innocent, maybe it is some kids who doesn't know better.
The following are some recent Bad Builds IMO I have seen.
This first one, I once tried to chat him to come to the forums, got an over aggressive response telling me to worry about my bad play. End of Match showed I outscored him. I keep outscoring him every time I see him no matter what teams we are on, same or opposing.

I though it could not get worse. Then I met this guy.

I also met this Awesome pilot on a few occasions. Those hard to see weapons are 2 LRM20s and 1 LRM15.

Continuing the tradition of Bad Stalker pilots though I am not sure if this guy is skilled or just got lucky. Red weapons are 3 LRM15s. I still think this is a bad build but he did score extremely well the one time I saw him on Caustic.

These are the builds that make me wish I could FaceMech.
Let 'em fly.