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/?

First, directories are lists, thus file access is linear with the number of files.
lol wut? I wonder if even the first versions of UNIX had this problem.

SQLite is made of slow and lack of features.
From what I've seen, SQLite is a lot faster than other OSS databases for small workloads, which seems to be its niche.