If a member only attends the two holiday services a year, Resurrection Sunday and Christmas; or comes once every few weeks or so (not counting for medical reasons) they should not be permitted to partake of the Lord’s Supper.
The original attendees were the ones who followed Jesus everywhere; they were faithful in attendance. Yes, there were other members by this time, and no, there weren’t church bulletins advertising meeting times, but those faithful and surrendered to Him were there.
John 6
108
The Facts About the Lord’s Supper
63 It is the spirit that quickeneth; the flesh
profiteth nothing: the words that I speak
unto you, they are spirit, and they are life.
64 But there are some of you that believe
not. For Jesus knew from the beginning
who they were that believed not, and who
should betray him. 65 And he said,
Therefore said I unto you, that no man can
come unto me, except it were given unto him
of my Father. 66 From that time many of his
disciples went back, and walked no more
with him. 67 Then said Jesus unto the
twelve, Will ye also go away? 68 Then
Simon Peter answered him, Lord, to whom
shall we go? thou hast the words of eternal