If your friends and family are unadventurous eating all the time springing spicy Thai on them probably won't go over very well. Especially if any of them find out that they can't tolerate spicy foods. I can't.; mild to medium is all I can tolerate.
I admit staring at the same old entree every reeception would drive me bonkers so I sympathize but hearing "I'm a foodie so spicy Thai for everyone!" out of the blue would have me leaving the reception for food I can eat.