I don't think you're going to get called for letting someone know you may have a solution to their problem.  Where you might get called is if you respond to someone with a problem resizing images by offering them your content or design services.   
 
Some boards are more touchy than others.  You can beat your head against a brick wall, go someplace else and forget the board, or you can become a contributing member - usually that gives you a lot more leeway. 
		
	
		
		
		
		
			
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