I don't know if it's the delivery mechanism, but it would seem that typically 75% of my recipients either don't get the emails or don't read them.
Of the remaining 25%, half tend not to use the web site.
Now of course I have no way of knowing if it is the email, the web site, or just people's personal opinion.
evite? More hassle and hinderance than help.
And yes, if you think you may have gotten an evite from me in the past 48 hrs, please check and respond. If not, please email me off LJ.