i find 30 a day is too much to help curb spamming , there should be levels , new members 5-10posts or admin verified posts , old members should get 20-40
and members with high post count that are actually helping the community should get unlimited posts
Be active, make a lot of content related tweets. Also use hashtag keywords to find a target niche.
Maybe these people will follow you if you retweet them.
Depending on where you are in the world certain opportunities may not be available to you. So for some its harder to make $100 online per day than it is for others. it is what it is.