I really don't know how bots can get through the CAPTCHA verification. Try adding a maths question upon signup (i.e. Bot Anti-Verification - What is 1+1?). I think this works.
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. - To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. - To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
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