Leto 3 you need not worry.
I often look at "maxw" and I wonder about the "xw". On the other hand, I have no association with "zz...."as far as I can determine.
But "xw.." and "zz.." are both recorded on HC long-term, as, "non-holders" of CDU.
Therefore, as I hold CDU, I believe that I am absolved. QED.
cheers,
Max