Being a nuisance at the bridge table is important for several reasons.
First, it disrupts opponents' communication, making it harder for them to accurately assess their hands and exchange information.
Second, it can force opponents to bid at higher levels than they initially intended, potentially leading them to bid to a difficult contract.
Third, you create uncertainty and pressure, causing opponents to make mistakes or miss opportunities.
Being a nuisance during bidding adds an element of unpredictability and challenge to the game, which is crucial for gaining an advantage and achieving success at the bridge table.
You are NOT a nuisance if you sit idly by and let the opponents have uncontested auctions and reach their par contracts. You ARE a nuisance if you get on there like a dirty shirt and interfere with their auctions.