if you want teen/almost teen content, you can look to mainstream hentai for that, or just mainstream anime, it's all over the place.
/ss/ should be restricted to prepubertal boys with female partners. I can agree with you on the toddler and baby content, /tot/ exists for a reason, but I think tween and teen boys do not belong on this board.
The age of the boys should be kept to within the range of ages 4 to 9 for any content to be able to qualify as being /ss/ content.
It's you whose preferred content should be kicked, also small dicks are superior, because if you come to look at little boys getting fucked by oneesans, you expect them to have the dicks tat would be realistically expected of a little boy, which is one that is shorter and thinner than that of a tween or teen or adult, even if the tween/teen/adult has a micropeen.