Possible Clues:

• Tweeter's 'Then again ...'
• 'Looking at it differently ...,' to a texter
• Second-opinion introducer
• Texter's "From a different angle ..."
• Online backpedaler's intro
• IMer's "Then again ... "
• Emailer's "Then again ..."
• Texter's 'However ...'
• Contrarian's abbreviation
• Texter's "conversely"