If your expectations haven't already at rock bottom, they will shortly after joining the on-line dating services, especially as a guy.
You will learn to expect to have every date postponed, often repeatedly.
You will learn never to expect the ladies to arrive on time.
You will learn to expect none of the pictures in the online profile to look remotely like your date, and for most of the text to be a lie, including things as benign as their address (and by this I mean just city).
You will learn to expect phone calls, e-mails, and instant messages to never be returned, and to be either questioned as to why you didn't contact them, or to be accused of being too pushy with the unreturned calls when they said to make sure you checked back with them.
You will learn to expect attempting to contact the women through the e-mails, IMs or other means provided on the dating site to actually REDUCE the already slim odds of them ever contacting you vs. those that just happen to come across your profile by chance. (I did statistical analysis on it, for guys this really is the case).
You will learn to expect even some of the women who contact you first to never even open your e-mail in response to them. And this is coming from a guy who has done searches through male profiles to see how he stacks up and confirm that it isn't just him -- I am consistently in the top 20% of search results sorted by most popular (if the search criteria are narrow enough to find the end of results).
You will learn to expect to be chewed out for being such a homebody because you don't spend around $100 per night going to broadway shows and high-class restaurants with friends, by women who are unemployed.
You will learn to expect to also be chewed out for ever going to clubs, movies, or other things by yourself rather than with friends, since guys don't group together as much as girls, because on the "rare event" that you find yourself alone, "it's blockbuster night". (This from a girl who is logged in on the dating site around 12 hours a day -- apparently not really that "rare" an event).
You will learn to expect getting questioned about why you are home and on-line on a Friday night, by girls who are obviously ALSO home on a Friday night, but claim to have had their "dinner plans with friends" canceled.
You will learn to expect almost half your dates not to show up at all.
I say this all from experience with only 4 weeks on jdate so far. Don't need any "lowered expectations" specialty site, the others already fit into that category. I think the jewish mother stereotypical neuroses set in a lot earlier than motherhood.... also noticed going with the head games that half the girls on there are psych majors. And other guys at the 2 parties from this I have attended all have similar stories. Hell, a few even had restraining orders against their former dates! Lots of time to talk about this when there is about an hour and a half in between scheduled party start time and when the first girl shows up.