Ask yourself why do so many companies send out so much "spam" email? The only supportable answer is because it works for them. I personally don't use it because it has a reputation I do not want to be associated with, but that is no reason to proscribe others from using it. TV adverts are much more annoying to me, but can you imagine if I were to start a compaign to stamp out TV advertising?
The only supportable answer?
So, bad SEOs still use invisible text because it is a winning technique by that logic, rather than because they don't know better. In fact, why do more and more companies spring up online each day? The fact is that 95% of all ecommerce companies go bust without ever even recovering their hosting costs.
People often don't do things because it works reliably, they do it because it may
work, and people like to play the lottery, however poor the odds of winning.
Fact. One company has sent me the same automated spam-mail 18 times now. It is an SEO company that uses a basic web-crawler to collect email addresses from the web. It is patently obvious that it is fully automatic, and that no checking at all has been done.
Companies use email spamming because a system like the one I just described can be setup cheaply and quickly and then runs on auto forever more. As a result, if it generates just two leads from those who knew no better each year, it will probably prove worthwhile.
The success rate of email spamming is pathetic, at less than 1 click-through per 5,000 emails for most campaigns.
A couple of quick tips though:
[*]Mail Washer is a free program that can filter out a lot of spam effectively, and because it can 'bounce' emails, appearing as though your email address is invalid, it can provide the only
way to get off of the majority of spam lists. It is far from perfect, but it is very good.
[*]Whenever you have to provide an email to get a password or access code for something, use a special account for it. Set a mail rule to automatically place all emails to that specific account in your deleted items folder on arrival. That way, you can scan through your deleted items when you are expecting the password or access code, and anything else sent to that account never bothers you. I use this technique myself, and it has meant that about 50% of spam is auto-deleted by that one technique alone.