I didn't know this from stake.com, why don't they listen to small bettors?
Stake is busy with catering to their whales which is why they allocate less time to small bettors though they don't ignore them completely or anything like that.
Wolfbet has a great growth, I find it strange that they do not have a signature campaign for now? Their campaign manager did an excellent job and now that bitcoin is going up much more they should take advantage of it so that they can have more customers, I honestly think that now more than ever Wolfbet needs more exposure.
Zwei usually runs the campaign at random times based on what I have observed. They don't really need to run a campaign currently though it will definitely help for exposure sake as you mentioned.