I've just read a distressing thread (as opposed to an amusing thread where I don't really mind so much) on which the OP needed help support and the number of posters who have just typed ".", presumably to place mark has really pissed me off.
It's not fucking entertainment folks and if you want to treat it as such at least have the decency not to be so blatant about it and try one of these approaches:
i) Add something useful
or
ii) type something appropriate: you've clicked on the message box and are going to click and wait on the post button so why so hard to type "good luck" of "OMG that is awful"
or
ii) Add to your watched threads
AIBU to think it is really not that hard not to behave like a rude rubbernecker