This userscript adds a [table][tr][td][/td][/tr][/table] ###ode to the xkcd forums that works like HTML tables, as well as a [csvtable][/csvtable] ###ode that can contain csv data and creates a table from it.

It will display the table with text using a code block by default, but if the viewer also has this script then it will display as a real HTML table.

The top row of the table is the header by default, but that can be disabled with [table={"header":false}]. Other options can be specified in the options block, but header is the only one that does anything right now.