Re: Announce your rank up, merit or any achievements - Discussion.
Showing off should have a limit, should have a boundary to feel ashamed.
I have a very simple solution for shameless and annoying self-praising: click Ignore 
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You don't need half a dozen topics from a single user to pitch you same product in a new packet all the time.
We don't need it, but said user does. As much as I appreciate your topic, I don't think it'll change.