If you managed to get $75 really fast than keep doing what you are doing hahaha.
Joining a signature campaign is also a good idea to keep earning more bitcoins.
If he made $75 that quick, I dont think he would need a campaign.
Since a campaign at most will earn you $8 in btc which isnt much lol. Unless you are from some third world country.
I noticed that too. Campaigns use to make 5x that amount in the same time but now it is $8 a week which is not really that much to put into anything to make your little of bitcoin grow.