Contacting package maintainer

Hi! I recently fixed a bug in icu73-bin AUR package and started to investigate how to push this properly to the maintainer. Wiki clearly says that one should avoid pasting patches into the comments section and rather email the patch to the maintainer. However, the profile detail of the maintainer with this package shows his e-mail address as "hidden". The PKGBUILD itself also does not have any maintainer entry that could be used to identify contact details of the maintainer so I broke the wiki rule and pasted the patch into the comments section. As the maintainer did not responded yet, my question in the meantime is - how is one supposed to discover maintainer's contact email in such case? Thanks, -- Michal