This was the behavior introduced in #470, but doesn't mesh well in communities where people are using both IRC and Discord; users talking to each other in IRC will receive a bunch of Discord notifications when one highlights the other. There should be a setting to have IRC->Discord highlights always require the @ prefix.

<Discord> <Link> this new bot allows irc to discord @highlights
<Austin> i mentioned that
<Austin> and i dont like that it doesnt require @
<Discord> <Link> Try it on me
<Austin> Link, no
[appears in Discord as "@Link no"]
<Discord> <Link> Was that without @?
<Austin> yes
<Discord> <Link> Hmm