If you type a < it will cutt the message at that part and submitt only the first part...
It probably filters HTML out and the < is the start of HTML tags? THen it is not an "error" as such.
Ah! Does this mean we can use HTML tags in the comments?
I don't know. Many comment systems filters out HTML. My guess was that it was filtering out the HTML. But hey, feel free to experiment on a map. :)
Edit: I just tried inserting some simple <i> </i> tags into a comment and it simply removed them. So my guess is that if you do this in a comment, it will all disappear.
Comment:
I think < is the preferred sign for "less than."
Will become:
I think
Too bad, but probably better for security reasons.