3
See "How do comment @replies work?" and "@Peter works for Péter Török?".
Comment replies will often work with unicode. EG: Péter Török can be reached by both @Peter and @Péter.
These are the documented rules (Not checked against latest source) for converting user display_name to comment-reply @names:
Remove any spaces.
Single quotes, dots, dashes and ...
support comments display-name
Only top voted, non community-wiki answers of a minimum length are eligible
Related Tags
display-name × 6bug × 4
status-completed × 2
comments × 2
status-bydesign × 2
support × 1
script × 1
api-v2 × 1
users × 1
stackauth × 1
associated × 1