Conversation so far:
When was the K Foundation started by The KLF?
The K Foundation was an arts foundation established by Drummond and Cauty in 1993 following their 'retirement' from the music industry.
Did Drummond and Cauty of The KLF really retire or was retirement for a short period?
On 17 September 1997, The KLF come out of retirement for 23 minutes to make an appearance as 2K.
Where there any other post retirement project of Drummond and Cauty of The KLFs?
They burnt what was left of their KLF earnings—a million pounds in cash—and filmed the performance.

Question: why did they burn it?
Self-contained rewrite: Why did Drummond and Cauty burn what was left of their KLF earnings-a million pounds in cash?