What he's trying to say is: .......he was shocked to discover comments he made on a window cleaning forum turned up for all public to see if they do a google search.
How the diddly squat did you work that out and why didn't he say that in the first place
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If you wrote that all people from Chepstow were tight, then your comments would be there to read, for anyone that typed Chepstow into their search bar. It maybe 5 pages in, but there non the less, Chepstow being the key word.
No reflexion on Chepstowites, just an example.