Sexxyeryca 2011 09 06 Cet 18 New -

Old vBulletin or phpBB forums often stored posts with metadata fields: username, post date, timezone, hour, and status (new = unread by user). If sexxyeryca was a member, Sept 6, 2011, 18:00 CET would be the timestamp of their last post or a PM.

This part is the most ambiguous. Possible interpretations: sexxyeryca 2011 09 06 cet 18 new

In 2011, usernames with repetitive letters (e.g., “sexxy”) were common on dating sites, chat rooms (IRC, MSN Messenger), and early social media like MySpace (still active then) or Badoo. “Eryca” is a rare given name, sometimes a variant of “Erica.” Thus, sexxyeryca could be a person’s chosen online alias. Old vBulletin or phpBB forums often stored posts

| Do | Don’t | |----|-------| | Use period-accurate slang (“crush,” “hook up,” “date,” “going out”) | Use post-2015 terms (“situationship,” “ghosting” – though “ignoring” existed) | | Include slow communication (waiting hours for a reply) | Assume FaceTime or Snapchat existed | | Reference then-popular rom-coms (Crazy, Stupid, Love. – July 2011) | Reference streaming services (Netflix was mail-order DVD) | | Show characters listening to the radio or iPods | Show characters with Spotify playlists | In 2011, usernames with repetitive letters (e

If you genuinely need to identify what this string refers to:

This is almost certainly a date: September 6, 2011.
By September 2011, notable events included:

Could 2011 09 06 refer to the file creation date of a video, log, or archive named sexxyeryca? Most likely.