How many people out of the world's nearly eight billion population, would you estimate, are attempting to host their blog including HTML posts and RSS feeds on an Arduino?
I guess that tracks for Internet of Shitty Insecure Badly-Designed Things.
Come up with the worst possible way to present information over a web page.
What device with 2kB of RAM is going to generate any kind of useful RSS feed? Why would you not use something more capable, which is not only going to have more memory but also a lower power consumption?
> What device with 2kB of RAM is going to generate any kind of useful RSS feed?
Such devices usually don't generate RSS feeds, but e.g. sensor measurements as XML (which can be processed directly, or opened in a browser with XSLT to generate a website and an SVG chart from it)
> Why would you not use something more capable, which is not only going to have more memory but also a lower power consumption?
Because anything else will have >100× more power consumption?
Compare the power consumption of the atmega328p on an Arduino Uno 3 mentioned further up this thread, with the power consumption of literally any ARM chip smaller than the sort of thing you'd use in a laptop.