that seems an egregious misreading of the parable:
At the Egyptian city of Naucratis, there was a
famous old god, whose name was Theuth; the bird
which is called the Ibis is sacred to him, and he
was the inventor of many arts, such as arithmetic
and calculation and geometry and astronomy and
draughts and dice, but his great discovery was the
use of letters.
Now in those days the god Thamus was the king of the
whole country of Egypt; and he dwelt in that great
city of Upper Egypt which the Hellenes call Egyptian
Thebes, and the god himself is called by them Ammon.
To him came Theuth and showed his inventions, desiring
that the other Egyptians might be allowed to have the
benefit of them; he enumerated them, and Thamus enquired
about their several uses, and praised some of them and
censured others, as he approved or disapproved of them.
It would take a long time to repeat all that Thamus
said to Theuth in praise or blame of the various arts.
But when they came to letters, This, said Theuth, will
make the Egyptians wiser and give them better memories;
it is a specific both for the memory and for the wit.
Thamus replied: O most ingenious Theuth, the parent or
inventor of an art is not always the best judge of the
utility or inutility of his own inventions to the users
of them.
And in this instance, you who are the father of letters,
from a paternal love of your own children have been led
to attribute to them a quality which they cannot have;
for this discovery of yours will create forgetfulness
in the learners' souls, because they will not use their
memories; they will trust to the external written
characters and not remember of themselves.
The specific which you have discovered is an aid not to
memory, but to reminiscence, and you give your disciples
not truth, but only the semblance of truth; they will be
hearers of many things and will have learned nothing;
they will appear to be omniscient and will generally know
nothing; they will be tiresome company, having the show of
wisdom without the reality.
from Plato's Phaedrus(o)
much different than claiming Socrate's criticised reading and writing
it's a parable, and one i read as intending to warn people of technology's ability to encourage the thinking that one can inform without comprehending
memory without understanding
mastery without failure
this reading allows for readers to be able to ask questions
(o) http://classics.mit.edu/Plato/phaedrus.html