I get that. It's an extremely important app for a lot of people. I will never use WhatsApp - simply because of all the nonsense perpetrated in its name on these forums - but if suddenly SMS/MMS were taken from my phone I would be at a total loss.
But support? No, no way, I'm sorry, I can't support a bunch of Veruca Salts crying out that the app - whose return has been promised by both Microsoft and the app developers themselves - isn't returning as fast as they'd like. The people complaining and starting Twitter hashtag "campaigns" have no idea what the actual problem is. They might know the *symptoms*, but they don't have any clue in the wide world what it will take to fix it. They've never seen the source code, they don't know how involved that source code is, and they don't know if it truly is a simple fix or a major rewrite of significant portions of code. They just don't know, they're complaining out of ignorance. Pure and simple ignorance. Oh, and entitlement, too.
Here's something to think about: WhatsApp has released updates to the app in the past without pulling it from the store. If it were a simple fix, why wouldn't they just do what they've done before, make the quick fix, and update the app? The fact they pulled it from the store should be indicative that it's not just a simple, quick fix. The fact that Microsoft themselves is helping them should also be indicative that it's not just a simple, quick fix.
So yeah, it sucks for the people who rely on it that it's not available right now. But I can't support this campaign and fully believe it's doing more damage, causing more frustration, and making things worse than doing anything else.