Do we need activity system in our forum?

[Amazon]

¿Maybe a harder captcha on the Registration Form to stop bots?

¿Or maybe a mandatory first thread on the "Welcome" board with at least 1 comment from other people before allowing to post anywhere?

If you register now you will find captcha is really hard now 

It is a very good suggestion to force new ID have a "welcome" post before posting anywhere else. Any objection?

[yago]

¿Maybe a harder captcha on the Registration Form to stop bots?

¿Or maybe a mandatory first thread on the "Welcome" board with at least 1 comment from other people before allowing to post anywhere else?

Edit: anywhere - > anywhere else

[Amazon]

I think it is ok if many people are HERO members, that doesn't mean they have good reputation, only indicating they had 500 posts:)

[Lighthouse]

I don't like systems that restrict new users to posting in special areas or has time restrictions.  There isn't a good solution here except to release Keyhote ID, so focus on that

[testz]

To protect our forum from spammers like me, I think it's will be good to have system similar to:
https://bitcointalk.org/index.php?topic=237597.0

What do you think?