It really pains me to say this, but your main profile photo is THE most important thing on your dating profile. Having more than one photo helps people can get a sense of who you are. It's simple, shows you have something in common and easily leads into a conversation.
And don't get me started on 'willing to lie about how we met'. Try to show your qualities instead of listing them; if you're funny, write a funny profile instead of saying 'I am funny and witty'. Similarly at the singles events I host, the hottest guy in the room won't always get the most ticks. In my experience, the best intro line is an original, brief hello which refers to something you like about that person's profile. I spend a lot time thinking about food, and to be with someone who didn't feel the same made me want to cry into my pulled pork.
It's important to know your dating deal breakers and ask questions about them out from the off.
Whilst having a 26 page checklist is totally counterproductive, it's ok to want to be on the same page about the important things. If you don't have shared interests and values, it's way harder to share a life together.
A similar sense of humour also helps massively on the compatibility scale – but keep in mind it's sometimes difficult to convey humour over mail and chat, especially if you are super sarcastic.
You don't need a set of tarot cards: if something doesn't feel right it probably isn't.
If his screen name is **Big D1ck Charlie**, he is topless and oiled up and talks a lot about signing up 'just to have fun', he probably isn't going to win the boyfriend of the year award. he only texts drunk/late at night – decide quickly if that's what you really want.
If you aren't up for anything serious then go for it, but if you want something more meaningful you should probably just move on.
We can't help but judge someone by what they reveal about themselves, but remember you are only seeing the version of the person that they have created.
If you find out early on there are white lies (men tend to lie about height and income most commonly in online dating) it could be an early sign that trust will be an issue in the relationship.