Raza Rizvi is an early pioneer of the internet in the UK. He spent ten years on the board of LINX and was one of the founding signatories of LONAP. In this very interesting post he discusses the early years of internet peering in the UK and how the founding of LONAP came about:
Back in the middle of the second-half of the 1990s if you were a UK ISP that wanted to show you were serious about providing quality Internet access to your customers, you had to be seen to be connecting, or peering, with other ISPs.
The simplest mechanism to do this was to join a peering point.