Learn the difference between participating in forums & spamming forums.

First establish yourself at any forum and only post such information if it is relevant to that forum.
Simply submitting link will get you banned.

If you're talking about Warrior Forum it's likely that the other users saw you as a nuisance and reported your link spam. Signature is the only place you can have your own links, and there's rules for that too.

Since this is on the SEO forum: posting links to forums or having signature links has nothing to do with SEO.

Read the rules before posting on any forum. Most of the forum don't allow link as a new member so need to post more there. Keep there in mind and if you can do this way I think you can submit the link.

It's sometimes not so easy to find the relevant inforamtions.
Search for forum rules, posting link and signature rules.
You are not allowed to post your affiliate links in your signature.
Your posts/questions should be posted in the correct subfolder.
Create value and post only answers which are helpful.

Forums don't exist so people like you could drop a link. They exists so people like me exchange ideas / information / opinions.

Become people like me and you could link to articles.

Notice, I'm not dropping a link in this post. Because it's not necessary or helpful (though I could point you to a post on one of my sites where I cover forum posting; I'm not doing it because I cover the important parts in the first paragraph here.)

First of all you need to be an establish member on a forum. All of the forum have their own rules. Try to read the rules of the forum. Some forums will allow you to submit link after creating 10 posts some may take 50 posts. So you have to find out the minimum requirements of post for submitting a link. Don't create spammy post, try to help other forum members.

What others are saying is right. If you only joined forums for the sake of posting your links at first post then better leave as it'll be deleted once moderators are able to notice it, tagging you as spammer that won't be able to come back after. If you want to successfully post your links you need to participate, you need to accumulate number of posts and establish your reputation to be able to recommend a link to someone who needs it.

Forum sites used to share your information and experience to others in form of questions and answer to others. But why link? Asking for link sounds spammy rather than helping or learning. be sure before linking any website or your own site, is it really relevant to your content and helpful for reader?

Use high pr forum posting sites related to your website and answer in a good manner.

Without spam,use unique words and follow the rules of forum.