As designed Smilies not parsed in Current activity

[Andy.N]

When you look at Current Activity, the smilies are not parsed, instead shown are their bbcode, so instead of a person's latest post, it would show : eek : eek without the space after :

Same thing happens in that person's profile's Current activity tab

 

[Mike]

BB code in general isn't parsed there. It's unreliable to do it because of the snippet'ing. This is the expected behavior.