Too many options is a curse.
Today there’s a related Github issue that spurs some interesting discussion regarding the different options in blogdown. In particular, the three different format(Rmd/Rmarkdown/md) when writing a blogdown post.
In fact, the differences I’m going to discuss reflect the differences between two markdown processors with different “extended” features. One processor is pandoc, which works under the hood of most yihui’s Rmarkdown packages. The other processor is blackfriday used by hugo.