Using the TweetDeck web interface at https://web.tweetdeck.com/
I have a column that displays the search results for #vmware. I have @thepingdoctor blocked for mindlessly spamming ads in Twitter proper, and the block is also properly displayed when I look at the user in TweetDeck.
Yet TweetDeck continues to show his tweets in the #vmware results column.
Is this a TweetDeck bug, is there some other way to block a user for good?