I took a quick search to see if this topic had already been addressed, but I did not see it, so here we go...
When using the href tag in the "leave a comment" submission form for giveaways, it appears it is looking for
(forward slash, double quote, greater than) before it will properly close the href tag. At least this is the case in the preview just below the comment entry. Not sure what happens if you actually post it, but didn't want to find out and waste a post / create noise.
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Not sure if this is a security feature, or a bug, but it makes it so that we cannot post links directly to forum topics, such as
http://www.giveawayoftheday.com/forums/topic/6278
However, it does allow you to post a link that ends with a slash, like
http://www.giveawayoftheday.com/forums/
Since there is no preview for forum posts (what I am typing right now), I'm not sure if this example will show up in the forums. I'll surround it with backticks as the "new topic in thie forum" comment implies.
Example of non-working preview in leave a comment submission form (desired link direct to forum topic)
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Example of working preview in leave a comment submission form (undesired link is too general)
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