In general, I never openlimp a hand. It serves various purposes
a) it keeps our range balanced
b) it thins out the field. Even when I say "this hand likes multiway action", I would love to have a hand heads-up or even have the opportunity to take the blinds.
On rare occasions you could argue for openlimps. However, I have found that these present themselves only on very loose passive FR tables in the early positions. E.g. on a table where you know it will be 5handed to the flop you could start to think about openlimping small pocket pairs for their implied value alone. JTs would also fit in this category. 6max, however.... I'd rather not - even though you have 3 loose passives to act behind you.
Definitely debatable... especially against people that can't hand read!
Hmm, while I love me some range balancing, the only people you "turn your hand face up to" are in the blinds and you have position on them. So what are they really going to do about it? The rest of the table has no clue. Thus when you raise or bet the hand post flop, the good players in the blinds don't know why you are bet/raising.
Dunno. It seems like a pretty marginal/break even spot either way, but I think the debate may center more around the "eliminate players" rationale b/w full ring and 6max rather than range balancing in general.