It still looks unprofessional, even if you 100% sure you are going to direct it yourself.
Remember, you’re not the only one that’s going to read it, actors, producers, DPs, etc. And if it look’s unprofessional, you’re going to have an awful time getting people to jump on.
And no, when you’re writing a script, you’re telling a story, that’s it.
I had a big debate about this with a fellow schmoe not too long ago, about how a screenplay with camera directions doesn’t mean it automatically get thrown in the garbage can when shown to producers. In fact, many, many famous, great screenwriters use camera directions such as: David Koepp, Charlie Kaufman, etc. Though it still doesn’t change the fact that including camera directions in a screenplay doesn’t help your cause at all. Can a screenplay with camera directions still be sellable? Absolutely. There can still be great screenplays
[i] [u] IN SPITE[/i][/u] of it.