The most obvious ones I have seen are submissions that get silently deleted in minutes by the moderators, and that goes to hundreds of upvotes later on. That's

The most obvious ones I have seen are submissions that get silently deleted in minutes by the moderators, and that goes to hundreds of upvotes later on. That's usually brigading but also spam and dog whistle topics. Also some early vote manipulation on the new submission can have a lot of impact using very few accounts.