Originally Posted by
SamirD
I'm sure someone will post a thread on how the like feature is broken and they're getting arg4 and arg6 instead.
So instead I posted this thread for us to try to discover and discuss the exact scenario under which the 'like' feature works and doesn't work in the hopes to narrow down the root cause to something IB can quickly fix versus spend a lot of time on.

This has been done to death already
The "The 13 Oct 21 FT 'Like' Feature - [now restored to prior version]" thread
TL;DR ... the Arg4 and Arg6 errors are only visible to the person who creates the like, no one else viewing the post sees it. And because the scope of the error is limited only to the likee and also because the "Like" feature on Flyertalk is bespoke to this forum, IB have said they are not going to invest any time/effort into fixing it.