@DonnyDuzDick it is still working as designed, indeed. if you go check the "snatched" info, it says "0 times"
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The "snatched" property indicates how many times the torrent were downloaded to completion. That is not to be confuseed with "grabbing" the torrent file, snatched property will increase by 1 as soon as any user downloads 100% of the torrent content, even if they stop seeding immediately.
The re-seed button sends a PM to all the members who have snatched it, that is, anyone who at any point in time have downloaded all the files.
Since this torrent has 0 snatchs, there is no one to PM, so the button is greyed out.