To be fair, the examples given in the OP give a little more information that just “I don’t want to post in this thread”.
The first says there’s not enough room for what he/she has to say, and the second that his/her secrets are too secret. Granted, that’s not a lot of extra info, but we are talking MPSIMS here.
Having said that, I have seen posts which fit the OP’s criteria, offering nothing but a bare “I’m not going to comment on this”, and that is annoying.
Well, there’s MPSIMS, and then there’s MPSINATS (Mundane Pointless Stuff I’m Not About To Share). It’s a given that every person on this board has some of the latter, so there’s really no reason to make a post to that effect.
That should be obvious to anyone who’s smart enough to find the power button on his computer, let alone make his way to the SDMB. The potential consequences of revealing personal information online have been made abundantly clear by the mods. Hell, I think it’s even in a sticky somewhere.
If someone had just poked his head into the thread to remind everyone of that fact, there would be no problem, but that’s not at all what the quoted posters did. If they had, the sentence you put in quotation marks not only have sufficed, but also would have been clearer in its meaning.
Good point. Every time a post gets added to the already massive database, searches take a little bit longer, and the board’s performance suffers a little bit more as a result. MPSIMS has more posts in it than any other forum on the SDMB.
Anaamika makes a good point. MPSIMS tends to involve quite a few people talking for the sheer pleasure of feeling the wind in their teeth. On the other hand, the forum might be tolerable for those of us who hadn’t experienced lobotomies if people in MPSIMS were encouraged not to simply post anything that leaked out of their heads but stop to think if it could possibly, under any circumstances whatsoever, be at all interesting or relevant to anyone else.