How to Write Usefully
PG speaks of writing usefully while not writing well.  Many of his sentences are phrases.  The subject of his sentence is often unclear.  He begins sentences with the preposition, "But".  Yet, his writing remains useful.  I'd rather the latter than the former if I had to choose, but considering the volume that he writes, it's surprising that he hasn't put effort into writing well.  He just doesn't care to improve his work.