Please don't get this wrong, but why do you post pictures of cacti all day long? Is that your job or just a hobby? I really enjoy your posts!
Well, I have them set up in a queue, so that is why they appear all day long. But, if the question is, “Why just cacti?” The answer is: there are a ton of blogs out there with cool content and interesting links, but they aren’t consistent or they post such a wide range of things that I don’t necessarily want to see all the time. So, for mine I try to keep the focus very singular so that people enjoy the same thing know what they’re getting by following my blog.
Also, I love to meticulously document and this blog gives me a focus.
Trust me, I have lots of other interests, too. But one blog (well, two: botanicality) is enough of a commitment.