I agree, if use a captcha, then provide an audio or another accessible alternative such as Recaptcha. A lot of modern websites are already doing that using at least two or three different API's from different vendors as far as I know.
And I also agree in that I'm using Windows Defender, MRT and Windows Firewall just to feel I do have some security software running, but I generally just try to avoid suspicious e-mails and websites and haven't noticed any unwanted behavior or damage yet. :-)
Lukas
I won't be using this account any more or participating in the forum activity through other childish means like creating an alternate account. I've asked for the account to be removed but I'm not sure if that's actually technically possible here. Just writing this for people to know that I won't be replying, posting new topics or checking private messages until the account is potentially removed.