Posted when something non-optimal happens. For example: "Got killed by a Retrode - Could've used a Recon Cloak". In the link, it is often fun to mention the Striker Dash.
This is based on Spiral Knights, more specifically the PvP game Lockdown. Credit for the screenshot goes to Owaoforum from the Spiral Knights Forums. (There, now I don't have to credit her in every post!)