Probably using the tag in StackOverflow for Q/A while we get the approval from Area51 helps users with low rep to pump their numbers.
The example questions can be replicated in StackOverflow and then invite our community to answer them. Right now there is now way to answer the proposed questions, so using the tag WHILE we get to the 100 users with +200 re points is a good option. IMHO.
This is an example of the How are transactions feeless for end users on eosio? question.