I would seriously quit. I dont often use the KV-8, as I use the speedy quadmount halftrack to do its job for me. But when AT piles up and the german infantry are numerous, i use it. Nerfing the KV-8? It indeed has plenty of weaknesses, such as its engine which will make the tank a massive target if it gets fausted/MINED.It also has TERRIBLE AT. I mainly will quit because it means relic has listened to the German players for nerfing a unit that isnt too much of a problem, meaning it has prioritized a unit adjustment for GERMANS when Soviets had a few issues with armor in terms of AT for some time now. The KV-8 can be ADJUSTED. All armor should be adjusted in the upcoming armor patch. But it has no need to be nerfed. That would be too much, and a blow to Soviet players' morale, destroying the glory of playing Russians altogether.
Sounds like you just use the KV-8 as a crutch and you're just mad they might make it fair somehow.