First of all, thanks OP for this awesome thread. In all the times I've been in Tokyo, this was my first time in Ikebukuro, and I found this guide invaluable, especially having the map.
Just wanted to give some feedback about shops as of June 2024
Great time at Awa no Dendoshi, Bunny Girl, Senhime, Marine Blue (Annex and North Exit).
On the other hand, got refused at Tohri and Polaris, which were shown to be OK on the list. I speak Japanese well enough to fool someone for the first minute, but was shown the door right away.
Granted this was in the middle of the day, and shops might want to keep up appearances. I've been in gaijin NG places depending on the tencho, the time of day, the phase of the moon, so the refusals may just have been me, today.