(i had to delete the http beginning of the url adresses because this forum doesnt allow to enter url adress in posts...very stupid feature, indeed)
Hi, and welcome. I've edited your post so that the links work.
The reason we restrict new members from posting links is because (like many forums), we get a lot of spammers signing up, often trying to drive traffic to their site, or create SEO spam. In fact, this forum isn't very active, so spammers are more the rule than the exception. Once you've been active for longer, you'll be able to post links. Teachat, as well as some Facebook groups, are a lot more active than this site.
So, it's an intentional feature, whether or not you feel it's stupid.
Personally, I think it's tricky to talk much about tea's health benefits. I prefer to drink the teas I like to drink (as long as they make my body feel good), and not worry too much. Drinking in moderation is probably a good idea, whether you're interested in tea's benefits or worried about drawbacks.