Read the profiles of your potential mates carefully: Just as you took a lot of time and energy to write a good profile for yourself, so did a lot of other people.
And just like you, those people are trying to communicate to you and the rest of their potential mates what they bring to the relationship table.
Respect people’s time by not writing any more than you’d be willing to read yourself.
Moderation is the key here; provide enough information to give people a clear snapshot of who you are, but don’t bore them to death War-and-Peace-style.5.
That means they also don’t have time to answer every single message they receive in their inbox.