If you want to reach me, the quickest and most immediate way is to find me on THP's outer communities — i.e., the Discord or Matrix. Maybe more reliable is e-mail, which I monitor with some frequency, though I can't promise quick responses.
That said, if you reach out in the outer communities, please do not send me unsolicited PMs except for emergencies. For any non-emergency business, reach out to me in a public channel first. If there is spam or other unpleasant activity on THP, please read the FAQ on how to report posts and do that; we (the moderation team) will be informed automatically and take care of it ASAP. Thank you for coöperation.
If you're reaching out about a possible link exchange, please be aware that I am trying to promote independent, smaller web presences and not direct people to big content siloes. I will not promote social networking accounts of any kind, no matter the quality. There's also an additional extra consideration for Touhou-related stuff; I will prize promoting that first, and other things of interest will be somewhat secondary.
Discord: Artistic Mask!anAL.XVMTc
Matrix: FluffyMask!anAL.XVMTc
E-mail: (push the following two words together) fluffy mask [at] tekitou [dot] moe