Hi, welcome to the forums!
The IRC can be accessed from the Cheep Cheep button in the top right of the page, next to your notifications. However, the SMBX Discord (a similar service to IRC) is more active that the IRC these days. It can be accessed from the P-Switch announcement thread at the very top of every thread listing.
Please post site-related questions in the SMBX.org forum, by the way.
its ya girl pseudo and im back on a provisional basis
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- a spam account, 2016