Hello Rana
I'd feel it'd be awkward to post on your thread here as new member, but without giving details on Community issues, here's what I feel.
I've known social sites like Myspace, Facebook, so the conflicts we face inside the Simmers community are very similar to the ones you'd have on other Internet places, without any exception.
It's easy to sit behind a computer, nobody knows you in real life. So some people find it rather "convenient" to rant, bully, blame, call names.
You mentioned simsecret LJ. With just this exhibitionism-voyeurism unhealthy online mental game, no wonder that some Simmers might feel extremely hurt about hate posts about them, their CC or site, blog, etc. Here I speak of experience, of having been targetted from the very beginning when I started to share my clothing retextures or "conversions" on other meshes with better shoes. I remember a hate comment about my "revamp" of an old glitter dress by Tehhi from Russia -Tehhi's very old site is still up today and Tehhi is really a nice person. It was at my first forum about this Tehhi dress revamp. But if some people don't like some CC, they don't need to download at all. And why then create a special hate meme about one dress or anything that one doesn't like ? Waste of time.
But other than this, since some very old debates (pay vs free), many meshers quit creating, left the whole community for good and sometimes removed their whole CC database. Because I think it's also very human, then when attacked by envious, jealous people (I have one famous Italian modder in mind who was attacked and he told me in E-mails), one would just close a chapter and move on, say goodbye and farewell. Some people took many hours, weeks or months of their free time to create, help improve the game with mods, tools (SimPE, CEP, no longer supported by their respective creators)... Some gratitude isn't just flat 'thanks' with a smiley but respect.
I have no tumblr and don't want any. Not because I'd be found, tracked down by one person who is there and posted about me - it's plain cyberbullying and defamation. I just have nothing very special to say and I'm not greedy for getting a huge amount of followers. My personality trait is to seek quietness and I love solitude too.
Online, I don't want to make friends anymore. For me friendship is a too high value to not be spoiled. A few people on sites managed to destroy completely some virtual friendships and today I decided that inside the Simmers community and other non Sims places I won't be trapped anymore. I don't mind people treating me like a pure stranger. So I put up a fence to protect myself. I have a family life, other hobbies in daily life and this matters more to me today. I still create for fun but after past events I'll decide what I'll share or not. I don't offer anything easily anymore on a silver plate. I stopped saying "Yes" all the time.