I don't want to mention names because there are many. Most of them are probably coming from stake campaign. It seems like some of them are trying to make a post longer when it can be done with short post.
Some signature campaigns (like Stake's for example) have requirements on the number of characters that have to be in a post. So while they may have a very simple answer that could be given in a few words, they are incentivized with money to make their posts a little longer in order to reach the character requirements that have been set. I'm not familiar with how widespread this is with other campaigns, but perhaps that explains why you singled out Stake.