Hi @vvarishayy it happens some times when the article mentions so many users.

And some times high reputations don't get mention and comment notifications of low reputation accounts.

As you haven't get notifications of this post, Steem Sri Lanka Contest Series | Secrets of success | Closed with 34 Entries also and none of the mentions haven't get notifications. May be because they are mentioned inside a table.

Use steemworld to check mentions. That's what I always do. Otherwise I miss mentions of 25-48 reputations'.