if you have to make a dozen of grep to exclude trivial results, it might be a hint there's something wrong with the pertinence of your output or the customizability of your tool

I found most tools very verbose but I've yet to use a tool where it doesn't have the ability to exclude certain warnings.

From another perspective, hacking often involves making broken things work better.

From yet another perspective: don't use broken tools.

I keep forgetting this one: don't offer help to complainers.

If the help constitutes telling people about this wonderful new tool you've just discovered called grep, perhaps that's for the best.