[luis]

Why not give the info to the opps?
Because it's part of the game to sort what unagreed bids are :-)

When you bid 4h you are trusting your pd will get this should be a two suiter, if your opps can't figure out what the bid is you are not supossed to tell them., They may imagine this shows a 4-1-4-4 or something like that.... and it MAY be!

If asked you should only say "undiscussed" or "to be interpreted" and you may add "I can't remember a similar bid so no data folks".

If you say "should be a two suiter with spades" you are giving too much info away and as you mention you risk getting into trouble for MI.

IMHO playing online you should alert any bid that would have been alerted playing "f2f" bridge with screens. Playing with screens you also self alert (and you alert your pd's bids too) playing online is a subset of playing with screens where you only need to alert your bids.
I wouldn't have alerted my 4h bid with screens and if asked I would have casted a very intimidating look to my screenmate :-).

Some days ago a player left a table after I refused 3 times to describe the meaning of a double in a competitive auction with a first time pd. I know many players will say "takeout" or "penalty" inmediately but since my pd wouldn't know why do my opps have the right to know what I have? Do you want to raise but you don't want to raise if the double is for penalties? It's up to you!
Of course this only applies to uinagreed bids and as I said before even implicit agreements by partnership experience shuold be alerted and properly disclosed.

A story fron a national tournament (top-players):
N - E - S - W
1c - 1h - p - p
x - xx - p - p
p

North asked west the meaining of the redouble (screens in use) and west said "it is supossed to score better than 1h just doubled"
The result: +1020 for EW :-)

[mishovnbg]

As director i can say that best definition i read about what to alert is: " If bid MAY not be understand right from opp, you MUST alert it ". Ofcourse it is mistake to describe p/your bids based on your hand or opp bids.
Misho