Not to me. Absolutely would not have clicked on this had the title been about terrorists in Belgium. I use Whatsapp so I am glad the OP used the title he did.

No, it isn't.

It's good enough when Bloomberg submits it to its own site because that lead is the primary information.

ON HN, where it is submitted because of WhatsApp being mentioned it's not the `lead' at all: it's a detail of the whole story.

I clicked because I found the headline too distant from HN's usual political submissions and I couldn't understand at first why there were so much comments on that particular rather common and not news worthy (at least not until we have more details that would show it matters more than the other fighters who come back) event

I live in Belgium so I thought it was weird it was on HN and that I didn't hear anything of that story that might have interested HN and made me go "I should submit this to HN".

edit: borken english is broken