Tim, I can understand where your coming from totaly.. We parents do like to keep our childs eyes from seeing things we dont find appropriate.. Its what papa's do.. I did notice some took down the avatars.. I do agree there not offensive, but again do totaly understand where you are coming from..
How about this for a fix to this "problem" Tim.. You can go into your profile and selcet the template titled "subrebel".. It is a neat template we have here and it is set up to NOT show avatars.. So this should solve any issues you would have.. You will still be able to surf the board, and the avatars will not show for you, but will still show for other members who choose to be on a template that does show them
just simply hit the link above that says "profile" then scroll to the bottom where it says "board style" hit the drop down box, then select "sub rebel" then scroll down and hit submit

and viola.. Your all set. If you need any help please just let me know.
Thanks for voicing your concerns and I hope this resolution is suitable for you
Thanks,
Chad