So you decide what is permitted to be considered harassment? That's pretty narrow minded. Using the ignore function, every person gets to decide for themselves what they consider to be the expression they want to hear. But when it comes to visuals, you've decided 'nope, there's no such thing as visual harassment, so it's all fine'.
It's pretty clear from this thread that there are people that consider glams to be akin to harassment, and I can all but guarantee people have different opinions on what is harassment and worthy of being /ignored for in chat. Frankly I find it childish that there's even profanity filters in games still, but I don't care if other people want to use them- because ultimately it's their choice what they see, and unlike some people I can respect other people's choices.