I keep finding profiles on dating sites where the person includes an IM (Instant Messenger) ID as part of the profile text.
However, when I then attempt to contact them via the IM channel, I get the message that my profile has been rejected.
Note to the people who do this: you need to get your ideas straight about IM encounters. If you include an IM id on your profile, you can expect people to try to contact you via the IM route, since many dating sites have poor-quality email and chat capability. If you want to check out somebody's profile before you consent to an IM encounter, then don't give out your IM ID at all. You can always check out the profile, then send it in an email if you like the person and want to talk to them.
Placing your IM id on the profile and then refusing to chat via the IM route is a sure-fire way to ensure that you will have a negative result from anybody who manages encounters via IM. To re-use an old saying, you only have one chance to make a good first impression, and pissing me off by submitting a Yahoo ID and then refusing to chat creates a really bad first impression...