linking question

[Tulip]

I'm sorry if I'm asking this in the wrong section, but no other sections seem fit. Is there a rule in linking? I put a link in my post but was removed. I've tried searching for the answer but I can't seem to find it. I looked in the FAQ section, but I couldn't find any questions and answers in linking in posts. I'm sure each forum has its own rules and reasons for them. I'm asking because I don't want to break any rules, nor do I want to upset the admin or moderators.

I would be grateful if someone could point out the posting rules so I won't make any more mistakes in the future. And if the rules are obvious somewhere, I apologize for my cluelessness for I honestly did try searching for them.

Thank you in advance for any answers.