Please don't respond that I probably shouldn't bother commenting; I kind of know that.

If you have a social anxiety problem then i expect that reassurances from a stranger on the internet won't have much effect. But if it's any help, then from a glance at your user overview page it looks like what you say has a generally positive reception. So it looks like you can write here without worrying about disapproval, based on your karma score at least.