Today, I tried to add a somewhat obscure interest to my interests list, this being "the one and only billy spears" (kudos if you recognise that one). However, after I submitted, it didn't appear in my friends list. Editing the list once again, I discovered that it was no longer on my interests list, either.
Experimenting, I did the following. the one and only billy spears - failed one and only billy spears - failed and only billy spears - worked only billy spears - worked
Is there a maximum length for interests, before they are considered invalid, or is this a bug?