This rather-confused BBC report on drinking is irritating me.
Firstly, it's reporting three findings in a confusing manner. There's one report which states the proportion of people reported they had drunk over the "recommended daily limit" at least once in the previous week (41% of men, 34% of women, 37% of respondents), and that this figure varied a little by type of household (43% of managerial and professional households cf 31% of routine and manual households)[1]. Separately, another report suggests that ~20% drank over twice the "limit" on their heaviest drinking day (though this isn't clear as to over what period).
Secondly, it ignores (as the government does) the unfortunate fact that these "daily limits" (replacing the previous weekly limits, since there was concern that people were saving up their entire "allowance" for one night of boozing) are based on pretty tenuous science - we don't have a good handle on what a safe level of alcohol consumption is, but what research there is suggests it's somewhat higher than the UK guidelines. Sure, excessive drinking is harmful, but saying that someone whose biggest drinking session of the previous week was more than four units (which you could achieve by 2 pints of a typical real ale) is a heavy drinker is misleading. Binge drinking should, I think, be related more to the effect it has on you rather than a finger-in-the-air number of units. Things like how long you consume the alcohol over is important too: if I drink four pints over a long session in the pub, I won't be noticably drunk, but if I neck the same number of units as spirits quickly, then the effect is much more bingey.
I can sort of see the argument that "people will ignore the limits, so we should set them very low as that will at least somewhat reduce excess drinking", but I don't really buy it. If you treat people like idiots, they're going to be cynical about your guidance.
[1] The article is worded so it looks like each m+p household drinks more (i.e. exceeds the limit by a greater amount), where actually a higher proportion of them drink over the limit.