"shitpost" might be a rather weird term of endearment... and I agree it can be used as a derogative just as much...
I have spent hours upon hours crafting my most elaborate shitposts myself, it's the beauty of the circle of life, one man's shit will be another man's feast... ummm... no... I guess that only applies on a more global scale for life than "man"... but metaphysically in terms of ideas and inspiration, it absolutely holds true.
Don't worry, I get it. Unfortunately, some do not. It can be annoying. Not long ago an actual shitposter said if I'm sharing jokes and humor, I should be declining rewards. I've taken flak like that for over two years. It gets old but certainly won't be enough to force me to live within the confines of their depressing world.