How about a 'like'/'rate up' function for the forum? That way you can show support for an idea without cluttering the topic with "I agree" "Same here" "That sounds good" etc. Would be especially useful for this Suggestions category I imagine. For example Discord has a system like that for their feedback forum: feedback.discordapp.com/forums/326712-discord-dream-land Doesn't necessarily have to push the topic up, but it might be useful feedback for people working on the site/person who asked a question.