How comes my sites are totally spam free?
We can argue about spam all day long, but in the end we have only one spam bot the auto default avatar spammer causing all the pain, the manual spammers are so easily to manage. Just a matter of adding a few required questions stops the auto bots. It does not matter how active your site is the auto bot can be stopped with out IP checking. If you have time the manual spammers are just as easy to stop and folks we are not talking about facebook or some other big social communities site. Just having a default newbie role with no option of publishing so you can inspect all new registrations prior giving them full use of your site works well. I have clients with active sites using these principles and they are spam free.
Lets not blow the spam thing out of proportion even sites with 5000 - 10,000 users can use one or both of two methods above with out to much work involved handling up to 50 or so new members per day or more is not really such a problem most Oxwall site will not have so much normal registration activity going on in my opinion. Once the spam bot is stopped it purely a breeze to stop the manual spammers. I also have much proof that is so.
However some other methods have been put forward to Oxwall, I am working on a new one and at the end of the day more tools should be handy such as questions with set answers question type, image question type that do not see the need for IP blocking the later having many problems unfortunately. Even checking mac addresses of computers and hard drive is to disk bulky and would cause cron hungry problems. But it is really up to Oxwall to sit back and think about giving us more options to add stopping spam basically its the profile question types in my opinion that are the key to the problem.