textboards

I want to make my own textboard in C fastcgi using files instead of a sql database.
Does it sound like a good fast idea?

I just want it to be blazingly fast.

What do you think /prog/?

>>15
yes i know there are multiple people visiting, but when i say user i mean entities accessing the data. a text board requires just requires one writing "user"(the script that adds a post to the data file) and one reading "user" (the script that writes the page), they reading "user" only has to read once after each write so in effect there is only one "user" and concurrency/locking is irrelevant.