The test for substance is a lot like it is for links. Does your comment teach us anything? There are two ways to do that: by pointing out some consideration that hadn't previously been mentioned, and by giving more information about the topic, perhaps from personal experience. Whereas comments like "LOL!" or worse still, "That's retarded!" teach us nothing.
I do believe simply offering a different perspective falls under the guidelines of a good comment, without the need for elaborating prematurely. That would be like pre-mature optimization; I might guess incorrectly what to elaborate on. Feedback gives me greater direction in what to answer.
1) "by pointing out some consideration that hadn't previously been mentioned"
The only thing we're led to consider is that you have a dissenting opinion. That doesn't contribute much to the discussion. If you talk a bit about your reasons for having your opinion, it might fit this guideline more clearly.
2) "by giving more information about the topic, perhaps from personal experience"
Again, you haven't given us any more information about the topic. The only new information we have is that you are part of a group that knows "that homosexuality is a destructive force in society." That assertion alone isn't going to convince anyone that you're onto something.
Something else to consider, which should be obvious, is that this issue is an extremely charged subject. Because of that, it's especially important to talk about your reasons for having your opinion. Otherwise, people are going to immediately dismiss it.
The test for substance is a lot like it is for links. Does your comment teach us anything? There are two ways to do that: by pointing out some consideration that hadn't previously been mentioned, and by giving more information about the topic, perhaps from personal experience. Whereas comments like "LOL!" or worse still, "That's retarded!" teach us nothing.
I do believe simply offering a different perspective falls under the guidelines of a good comment, without the need for elaborating prematurely. That would be like pre-mature optimization; I might guess incorrectly what to elaborate on. Feedback gives me greater direction in what to answer.