A U.

Former user and I'm here to give an honest review of the site.

Moderation:
Moderation is terrible. There's only 33 moderation staff for a site that's nearly 17 years old AND owned by a sex toy company. Only a few mods were helpful and nice during my time. The punishment system is terrible. No mutes for commenting abuse, no warnings for anything, no post uploads reductions just ban ban ban! 3 bans and you're permanently banned. Mass downvoting on comments that are weird and creepy? Ban. Unknowingly post art from an artist who became "conditional dnp" because the last time you uploaded art from them they weren't "conditional dnp"? Ban. Found porn you like and you comment "I wish I was them"? Ban. Telling mods to delete blacklisted Posts? (e.g. Young/cub) Ban. Don't even bother with trying to do a ban appeal because it'll never be replied to. You can try contacting the lead admin if you're desperate. Some actions that you should be able to do e.g. replace and delete posts are mod tools so you have to ask a mod to do those things which is inconvenient.

Posting:
Posting is fine but does have a few flaws like having all vids be.webm format and posts waiting to be approved is annoying. There are loopholes to posting which once found, can be easily abused. Another thing about posting is for posting art from certain artists for example, can be VERY competitive or dominant we're talking about the the-artist-just-uploaded-that-10-seconds-ago type of dominance and competition. The last time I checked before I left nearly all of one of the certain artists posted on there lately is all one user and rarely a different user.

Blacklisted Posts/comments:
While the Blacklist option is there for an (unfortunate) reason, it is concerning how much "young/cub" tags are on explicit content and the comments on those types of posts are disgusting because it's literally cp! All you get for asking the mods to do someting about it, you'll just get "Just blacklist it!" There are other disgusting nsfw blacklists that I can't list here.

Accounts:
When you signed up to e621.net, you're account will be up there permanently and you can't delete the account nor your posts. Once you posted/create the account it stays there. You just have to abandon it and let it get caught up in the spring cleaning they do in order to leave e621.net.

Overall don't sign up there and get dragged into the drama there and just browse. I hope this review helps.