Because you need a steem account to use and them don't have option to create guest account... I mean, it's hard to normal person create an account in another site and come back to login using steemconnect and authorize the posting key with the active key...
Other problem is that don't use steem to store the questions! Then why don't have a guest account option?
Congratulations @faireye! You have completed the following achievement on the Steem blockchain and have been rewarded with new badge(s) :
You can view your badges on your Steem Board and compare to others on the Steem Ranking
If you no longer want to receive notifications, reply to this comment with the word
STOPVote for @Steemitboard as a witness to get one more award and increased upvotes!