Perfectly acceptable. I believe it's within everyone's right to filter what hits their browser (and what their browser gets in the first place) as much as it is the website's right to serve whomever they want.

They should attempt to use technical means, though, as it's unlikely that a simple 'Do you use adblock?' prompt is going to work very well.

Their website, their right, their choice. Of course, people protesting/boycotting/etc. those who block people who block ads is also their right and their choice.

> So what's your view on sites blocking people with AdBlock?

It's the web equivalent of an a entitled-feeling child throwing a tantrum.

People who use ad-blocking software, and temporarily disable it on your page just to view the content, are not going to click on the ads.

Furthermore, if you take additional measures to make them click on the ads ("please visit our sponsor first"), that constitutes click fraud. Users who click on an ad just to view the content are not interested in what is being advertized at all, and will not convert to buyers.

Morally, it is within a hair's breadth of sending Javascript to the user's browser which simulates that user clicking on the ad (so that it looks like a real visit, as the ad syndicate knows), which would be blatant click fraud.

They can try if they want but it will cost them lots of money for no benefit.