The “strings” here are a mixture of answers, commentary on answers and commentary on questions; sometimes a bit confusing. The best thing seems to make it clear which of these things you are doing. If you are going off-topic, you are supposed to whisper, which is the two dashes on either side of the comment. You should also direct your comment using the @Irishmar convention.
Points or “lurve” as we call them on Flutyher. are supposed to be for good or thought provoking questions or answers, but people frequently use it for there own reasons.
+GQ and welcome to Fluther!