The tag random evokes the idea of a "random" post, something which is categorically disallowed on Stack Exchange.
The tag random evokes the idea of a "random" post
I don't see it. As in, I don't see a problem. Before you started about it, I never thought people would see random as an indication of a random post. Random posts are not allowed on the SE network.
On top of that, there's the tag usage help. When you hover over the tag, it shows the following:
This tag is for questions pertaining to random numbers, whether pseudo random or truly random.