Why mentions from you do not work

I recently discovered why I never get mention notifications from you: because your signature uses a template. Echo uses regular expressions on unparsed diffs to detect signed comments. If a timestamped signature is not found, notifications are not generated. Read it yourself.

And I recall reading somewhere that templates in signatures put an unacceptable amount of strain on servers. TOW forbids them, for what it may be worth. So you should probably change it anyway.