You can edit everything, without registration. (But if you delete everything, I'll roll it back and then make a voodoo doll of you and stick some needles into it).
The most important rule is: **it's collaborative notes, not Wikipedia**. In other words, incomplete entries like this are welcome here:
> **pros:** pretty nice API\
> **cons:** buggy (see an example on my Github, here's the link)
Markdown is supported in most places. 2 noteworthy features: tou can write `[pkg](@hackage)` to get a link to package `pkg` on Hackage, and you can mark snippets of code with `repl` to show that they come from GHCi:
* don't write about a library if it's worse than all other libraries and doesn't have *anything* that could make it the preferred choice in some situation