In reply to dipling:
You are out of luck when it comes to $display. You are going to have learn some some scripting tools like PERL or Python to filter your logs.
It is possible to override $display using the VPI and set up reporting system similarly to what the UVM report server does, but it would be far better to get everyone to use `uvm_info even from the DUT and even if they are not using a UVM testbench.