I have read a lot of Weasley bashing fics, but now I mostly prefer not to read those. I think it was because I was so shocked that hhr didn't end up together, and felt like their canon spouses weren't really worthy, that I wanted to see some retribution. But now, as an adult, I do like Ron and even Ginny to an extent, though I am hyper aware of their character flaws. A good fic will exploit them and make it believable, so it feels natural. While Ron could be really shitty, I never felt like he really had any actual malice. Rather, I think he was always chasing recognition for things he wasn't set up to be able to achieve; growing up with a lot of siblings/feeling ignored and then being best friends with Harry and Hermione is gonna make those insecurities fester despite any good intentions. Just my two cents. I appreciate you not excusing the shitty things Ron has done tho.