It’s not appropriate to send hongbao after wedding, according to my Taiwanes bf. You’re supposed to bring it beforehand, if you’re not attending the banquet.
However, I still think it’d be alright if you paid friend a visit with hongbao, or maybe a nice gift instead. After all, the hongbao cash usually goes to parents, so he probably would be happy to get a small packet of cash just for himself/wife.
But, I just can’t stand the tradition of cashgiving because it’s such a copout really. I think there should be an ease up where people can bring gifts to bride and groom, but then, gifts don’t pay for banquet facilities, do they?
Taiwan weddings are all about “face” and “guanxi” for familes anyway, and very little about just the couple uniting.
For a society that seems to be so melodramatic about romance (see soap operas), weddings in Taiwan are about as romantic as a freak show. The bride usually looks a bit like a freak with all the ridiculous frou-frou make up they put on them. And the guests, many of whom have never even met the bride and groom, are there toasting and shouting out good luck sayings about ‘spawning’ and ‘staying together forever’.