Would be really awesome to see a Tag feature in deal comments. As in @Moots or at @Op(original poster) and the tagged person gets an inbox notification of this.
Helps keep track of anyone asking or replying to any comments you made or deals you posted.
This could also be handy for deals. As YouTube all you need is the last 6 characters of the video id to view it. If you could refer this it'll be easier to refer to other deals posted.
You can currently set a setting where as soon as you post a deal or comment, you are automatically subscribed to that thread. It's called 'Autosubscribe' in your settings.
(I realise that it won't help in the case where only your username is mentioned in another person's comment.)