Re: Of course if you don't read the small print on BT's consumer T&Cs...
"If you want the NXDOMAIN response then just disable Web Address Help from http://preferences.webaddresshelp.bt.com/selfcare/. Takes just a few seconds and no config changing".
That's useful to know but misses the point a bit. Services like OpenDNS pull the same manoeuvre, but you make a conscious choice to use those.
The response is the same for each of your points there: Why should I have to do any of those things because BT are greedy and unethical and want to monetise a service I already paid for and hide the fact in the small print?
And you make a concious decision as to which ISP you use. If you blindly agree to a legal contract without being fully aware of all the terms of service, then more fool you. I suggest you watch Dave Gorman's Modern Life is Goodish (http://dave.uktv.co.uk/shows/dave-gormans-modern-life-goodish/watch-online/#2652189551001), especially the bit about being in the audience.
Why do you assume that because you are paying directly towards part of the service that this covers the entire cost to the provider ? Do you expect newspapers to have no adverts in them and that the cover price covers the entire cost to the publisher ?
Remember there is plenty of choice of ISP who don't use adverts to subsidise their customer price, although BT may be being forced to subsidise them but that's another discussion, however that may mean paying more up front. You pays your money, you takes your choice.
"Simple rule to follow, if you use basic internet services only, ie web and email, ISP kit is serviceable. If you use anything that causes the ISP support desk to go, "let me check into that,", their kit is probably worth changing out."
Or, just a thought (and I realise this is hilarious optimism on my part) a simpler rule still to follow would be for the ISP to supply a router fit for purpose given that that's a part of the service agreement, rather than shelling out for kit you shouldn't have to buy.
Fit for what purpose ? As I said they are usually perfectly serviceable for general internet use and that is what low cost standard broadband is designed for. Do you complain to the car dealer that the Ford Fiesta you bought when you went in looking for a town runabout is absolutely useless at off roading ?
If you want something specialist, you need specialist kit, do your research before entering a legal contract, don't just go on price. FWIW I do reckon that there should be either some sort of discount if you don't want the supplied router, or a nominal charge if you do, so you can do the right research.