Between people spamming text, spacing, or writing overly long comments, there really should be some kind of limit in place.
That is a good point there, but there is the case of people who prefer more than say a paragraph. The best thing you could is just ignore those comments that you normally will not to get involved in.
After all, that is what blogs are for especially ones made by Fandom staffs for certain purpose.
What do you think?