We already see trash like this, especially when people try force something out to look constructive. That's why we have the classic two liner junk posts that people make en mass. I've even seen people telling others to make sure they write two sentences so it's not spam like that's some magic number). It's just enough to look like they've made an effort but when you read it they're not actually saying anything of substance and have just stretched what is essentially a few word post out to two sentences. We even saw in the past people cheating character requirements on signature campaigns by adding invisible junk to the end of their posts in order to dupe the bot that was checking they were making 100 character posts or whatever.