Doesn’t sound like ‘for fun’? But anyway- you’re not ‘at home’ in a forum, a forum has an owner who offers a place for diskussion but he makes the rules, too. And normally you do transfer the rights on your intellectual property to the forum when posting…
Isn’t this consistent? As written from both of you, there were several violations of the rules that you were warned about already. You can’t expect to be treated the same way if doing the same violation again and again? That’s violating the rules with purpose and it’s disrespect for the forum owner.