I have to say I'm quite upset. Not because I care about the E50 all that much, but because as a paying customer I hate being tricked or lied to. For all the years I've been playing World of Tanks I never believed in 'stealth nerfs'. Sure their patch notes suck, but actual stealth nerfs? I thought maybe, at best, they were lazy, but not deceptive. Unfortunately this was confirmed over the last couple days and though Wargaming.net has indicated they will change the gun depression back, it still irks me.
Two words: War Thunder.
You have some competition now Wargaming so you'd best start listening to your community.