Childish? lol, Ok.
For me its pretty simple Im here for laughs and Bears talk/news. If a poster provides none of that (to me) yet spams threads with nonsense (again to my taste) then why not make it easier to scroll through? Its not about being bother by thier content as much as the clutter they create. To be clear my threshold is pretty high but, whether in real life or online, once I decide I would rather not associate with someone or something , well, then I dont. I have no malice, no hate, I just decide they aren’t my cup of tea and move on.
As far as these rare posters I ingore actually posting something I would find funny or insightful... I think Im good if I miss the 1 in a 1000 post they might someday make.