Hi,
I suggest to make this change at line 235 (aprox.)
Now it is like this:
$html .= "<p>$curauth->description</p>\n";
Better like this:
$html .= "<p>";
$html .= str_replace("\n","",str_replace("\n\n","</p><p>",$curauth->description));
$html .= "</p>\n";
What we get?
Description appears in only one line, even if user has wrote many lines and paragraphs.
So this fix will make text appears as it should be.
Cheers.