is there any chance that editing can be allowed on the original post for all time?

cause for example i have the fast show thread and have a list of attendees and who has paid and i cant edit it now and i wanna add that cooper has paid
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Red Escort 1.6LX
Then - Red Escort 1.4
Then - Silver Fiesta ST 170BHP
Then - White Fiesta ST MR200+
Now - Mitsubishi Evo IV Forged 2.3 500BHP
and Mondeo Mk3 2.0TDCI