On the other hand, if you WANT to have parts show up in the Netlist (and hence on the PCB), but NOT appear on the BoM, use KiBoM. Handy when you have parts like shorting links, test points, logos etc.
Edit the bom.ini file (which KiBoM creates in your project directory after first time run).
Get it to ignore schematic symbols with a field named “fit_field” marked as DNP.