So then, you might ask, why I block them? They're (1) often distracting eyesores (2) potentially contain malware (3) slow down site load times.
2) An up to date antivirus software program combined with a responsible site negates this risk to almost zero.
3) This point is wrong, as far as ZAM is concerned. This is the #1 reason we force our ads to load inside of iframes. The ad servers can be completely down and our pages will happily load without pause. If a site chooses not to load ads in iframes, you are right. They can slow down the page loads. Some choose not to be cause ads in iframes are a pain in the **** to implement properly.
We do try our very best to keep the intrusion at a minimum. If we really wanted to crank it up we would have interstials, dashboards every page load (the ads that come up from the bottom), popunders constantly and more ads than content on every page.
It's a very difficult balancing act for us. Gone are the days when someone can make a popular fan website for a game that is popular. They get crushed by their own success. It isn't a matter of it being a full time job for them or anything else. It's a simple matter of the cost of hosting the site. Just the bill we receive every month for the bandwidth alone is approaching 5 figures, for our entire network. Server costs are in addition to that.
We really do try our best to keep the ads to a minimum. Not a week goes by when we aren't working with our advertisers and sales staff to keep the user experience positive. We frequently pull ads that do not meet our standards, if they are remnant (come from a giant pool of ads) or direct sales. Flash ads that use far too much cpu, play sound without the user clicking on them, flashing ads, etc. all get pulled as soon as we find out about them.
Ironically, we can't run google's ads. We would need to hire someone full time just to keep blocking all the gold/gil/isk selling ads that would appear in them.
The purpose of the graphic which people who adblock ads see is not a different method for us to advertise. It is simply to educate and explain why we run ads and hopefully encourage people to whitelist our site(s).