And, as always, no one should feel obliged to stop lurking. These threads are a meant as a safe and easy space for people who do lurk to pop in if they want to, and some people have used them as a springboard to regular commenting, but that doesn't have to be the case at all.
Lurking is one of many ways to be part of this community, and if lurking feels best to you—lurk away! lurk away! :)