Contact

Post in the forum. It needs a free account, and it is read. Say which page, what it shows, and what you expected — a link to a match or to Valve's own text makes a correction quick to check.

Useful things to send: a number that disagrees with the game, a recommendation you think is wrong and why, a hero you want covered next, or a planner that breaks.

If you hold rights in something shown here and want it removed, say so in the forum with a link to the page. Requests are acted on promptly.