What happens is that if time passes until I get it, days for example, in the end I don't come back. I have decided that when I get a smerit, instead of meriting a previous post, I keep surfing the forum and give the merit to the next post I find worthy of merit.
Quality is a relative thing. If the post that you found to be hq and you thought to come back when you will have an smerit is really hq, it will stay in your mind and you ultimately will find that post to merit. The case you said means that that post was not hq enough because by time it seemed to be less hq that the new post you found.
That happens in daily life too. Options... But the truth is if the thing is really credible, you will come back to it anyways.