If newbies are not allowed to post, how will they leave a link in their posts for asking help?
If forum censors link from newbies in posts and in bbcode blocks too, they will have difficulty in asking help like confirming one website is legit or is phishing site. Only a link can provide information for newbies to ask.
Not all posts where someone asks for help need to have links. You can ask for help without it. But it can also easily be bypassed. if I am not allowed to post "bitcointalk.org", I can write it as "bitcointalk .org" and it won't be recognized as a link. Also, instead of posting a link to a wallet for example, you could ask someone to help you and post that link.
For example,
what is the official website of Electrum?
Still, I don't want to see such restrictions for newbies.