[insightcheck]

> "if he wrote/called each one of them, would he get a better response?"

Honestly, yes. From the social media post in the article, it's quite easy to interpret the question "How come I can’t find something similar for Belgium?" as rhetorical, and intended to raise awareness more than to get a response. The tone is also accusatory (nothing wrong with this, but it's less likely to get a response on social media), so there's less benefit for an official response on social media that will invite further scrutiny.

The post also tags multiple representatives. If he tagged just one, there would already be a greater likelihood of a response, otherwise each person can deflect the question to the rest of the group.

If he sent a personalized email or letter to a single representative with a question or proposal (then waiting, and emailing a new representative if they didn't respond), then he could have been redirected to the most appropriate person. It's generally recognized that calls/emails/letters are quite effective. You can see it in campaigns where people are asked to "call/send an email" to their representative, instead of getting asked to tag them on social media.

[spelunker]

All fair points. As someone who has never actually gone to the effort of reaching out to a representative by email/mail/etc, perhaps I should give it a chance instead of dismissing it as not useful.