One thing I've noticed over the years is that in terms of marketing, reddit has a disproportionately high level of return in interaction relative to its size, while Twitter has traditionally had a low level of return relative to its size.
For some reason, comments on reddit has always been viewed as more trustworthy relative to other social media platform, despite reddit or's general reputation for being confidently incorrect on many subjects.
There are certain people whose entire career was made by their reddit posts, yet, it was always odd to me that reddit never managed to effectively capitalize on this other than making their platform worse with every update.
Testing out this theory has been interesting.