Yeah, this has been a big issue here. Usually, to see the hidden content, you would need to reply to the topic. There was no other way until I added the thanks button which allowed users to reveal hidden content without replying but the downside to that is that it does not support mobile skin. So the mobile users are forced to reply to topics in order to unlock the content.
I have found something else which can unlock the hidden content by using the UpVote button but it's not an official hook and I wasn't sure how well it would work for us since the hook was paid and developed by a Romanian so we kept the Thanks button to prevent spamming as much as possible.