Probably not.
TBH, I don't really have any stats for the frequency of usenet postings that concern this or any other topic really (and these days I am not sure google is up to the job of finding out either!). Hence I tend to write stuff that is triggered by a posting, and where I have memory of it being covered a few times in the past.
For the wiki itself and the FAQ, I have a bit more visibility. I can get search string lists for the search capability on the main FAQ page. For example the top hits this month are:
2 expansion 2 fit door seal 2 insufficient system pressure 2 motor in washing machine 2 noise from radiators when turned on 2 oil boilers 2 pilot light goes out during the day 2 pilot light on but does not firer up 2 planer and jointer 2 plumbing 2 power showers 2 pressostat 2 radiator valves 2 roofing 2 roofing 2 selector switch 2 setting timer on combi boiler 2 soldering aluminium 2 sunvic mp2 2 thermostatic 2 using taper edged plasterboard 1 3 bar pressure releasevalve 1 3 bar pressure valve 1 3 port mid position spring return valve 1 3 port motorisedvalves 1 40 amp 1 40 amp mcb 1 40 amp rcbo 1 acorn 1 b40 1 balancing 1 banging 1 banging when spinning 1 belt has come off the drumWhich are probably quite predictable. However if you look at the most popular wiki pages:
# Main Page (70,827 views) # Cables (55,789 views) # House Wiring for Beginners (47,006 views) # Roof construction (46,975 views) # Central Heating Design (33,256 views) # Make Things from PVC Pipe (24,750 views) # Fluorescent Lighting (23,164 views) # Domestic Hot Water Systems (22,153 views) # RCD (19,323 views) # Motorised Valves (18,482 views) # Taking electricity outside (18,406 views) # Central Heating Repair (18,210 views) # Central Heating Controls and Zoning (17,926 views) # Rewiring Tips (14,945 views) # Halogen Lighting (14,724 views) # Silicone Sealant (14,447 views) # Partition Wall (13,897 views) # Terminating SWA (13,574 views) # Current events (12,933 views) # Sheet Materials (11,737 views) # Insulation (11,201 views) # Wiring colour codes (11,059 views) # Strengthen a Wood Floor (10,609 views) # Changing a consumer unit (10,492 views) # Limescale (9,639 views)
Some are predictable (and remember now that searches of the main FAQ also find wiki content as well now since I started cross linking them), but there are a few in there that I would never have predicted!
Some like the roof construction one, was just a "throw away" I started for answering one question, and it was an interesting thing to draw in sketchup. I never anticipated it being the third most viewed article! I am constantly surprised that so many people want to make stuff from PVC pipe as well.