Amen to that. That's a big issue with most charities, actually. I wonder how the cost/benefit works out, though? I'm guessing it's probably still worth it to send the mail.
I work at a 501(c)(3), and direct mail is absolutely worthwhile. Maybe 1.5-3% of recipients of a prospecting piece actually respond, and they probably won't make up for the cost of the mailing. However, those respondents then get more mailings specifically for current donors and those mailings make money.
Out of that group, donors are checked against databases of known giving history and net worth. These databases aren't always accurate or comprehensive, but it helps fundraisers to ID people who might be able to give more--sometimes a lot more.
When high-value prospects are IDed, they usually get assigned to a major gift officer who starts building a personal relationship to solicit very large gifts. This is where the charity makes the majority of its revenue. I usually see 95% of revenue come from the top 5% of donors, largely individuals.
If you're uninterested in receiving lots of mail, most charities will try to accommodate that request. However, resources are limited and dealing with the problems of $XX level donors often takes second place to the problems of $XXX,XXX level donors. I've seen stacks of returned direct mail several feet high from people who moved, died, wanted no more mailings, you name it. It was always on the to-do list to remove those names, but never at the top of the to-do list.
As someone who would regularly give to the ACLU - IF THEY DIDN'T SPAM ME - I can guarantee they are loosing money (and supporters) because of their policy.
In particular, I contacted them asking if contributors were put on mailing lists. I was told that regular membership contributors were added to several mailing lists, but that one-off contributors were only sent a small amount of ACLU generated mail, and if I put a note on my donation to the effect of "do not send ACLU mail" then I wouldn't even get that much. I set up my bank's auto-bill system to send them a $100 monthly check (i.e. regular "one-off" contributions) and had "DO NOT SEND ACLU MAIL" in three different locations on the check and that phrase was the only thing in all caps on the check. Within two weeks of the check being sent I had started getting non-ACLU mail that had a typo from that check. I immediately cancelled my bank's auto-bill to them. That was more than 3 years ago. So their spam has cost them at least $3,600 from me alone.
This comment is an excellent illustration of why privacy is so important. Your goals are noble (I hope) but the methods employed are absolutely terrible.
"databases of known giving history", "databases of net worth"...
This is precisely why I only donate to charities and causes anonymously. It's sort of stunning that ACLU, the champion of privacy, does not offer this option.
At this point, it's almost certain that the benefits outweigh the costs, considering that non-profits still compete, and every non-profit I've heard of sends tons of mail.
At this point, it's almost certain that the PERCEIVED benefits outweigh the PERCEIVED costs, considering that non-profits still send tons of mail.
There is little doubt that there are benefits to their current model. tvanantwerp covered some of those benefits.
But there are costs and benefits that don't appear to be included in their current calculations. If anybody doubted the difference that lots of little contributions can make need only look at successful crowd-sourcing systems and campaigns.
I believe that most non-profits have been told to go after the big fish donators and if they have to destroy all the little fish in the process, "oh, well". My point, and based on the other comments, I'm not alone, is that the little fishes' contributions may add up and be worth more than the big fishes with a lower overall cost (because it costs to produce and distribute those tons of mail).
The issue is that, from the charity's standpoint, your most likely donors are those who have already donated. It would be nice if you could volunteer a higher donation in exchange for a promise not to be mailed / emailed for a year or two (or ever). I donate to a public radio station on a monthly basis, and some months I feel like they're putting that entire donation into efforts to market to me.
I ran into one of the higher-ups for the ACLU at Ashby BART (executive director or something?). I mentioned this problem and asked how I could donate without receiving any marketing materials what so ever. He gave me his card and told me to email him personally.