We haven’t progressed far enough to be detectable by intelligent life in other star systems, even the closest ones. The filter can easily be in front of us. It could just simply be that interstellar space travel is too infeasible, so intelligent species never reach beyond their home system.
I itemized for the first time this year so I couldn’t use it, but I did fill it out completely as a comparison point to make sure itemizing was worth it. It was pretty painless, not very different from free filing through various other companies.