(twitter.com/cliffdailey)

Airtime, the Sean & Shawn bred startup that launched earlier this week, has slowly grown on us. Our initial reaction was in line with the majority of the Internet's: "Okay, it's Chatroulette without penises." But the more we've used the service, the more its benefits for networking, flirting and stymying boredom have revealed themselves.

But the thing is, since the site hasn't really hit critical mass yet, you tend to run into the same types of people over and over again. They're almost always very nice, but in our experience, they also almost always fall into one of the below five categories.

1. Journalists

Okay, this reporter is part of the problem, but few seem to be as in love with Airtime as the navel-gazing, network-savvy media elite. While the new app has been extensively reported on, few of our Facebook friends who aren't explicitly involved in media or tech seem to have caught on to the trend. We tend to wait to grant an app "phenomenon" status until it has been adopted by our Kardashian-obsessed, text-messages-in-her-sleep 20-year-old sister.

2. Startup Evangelizers

No where has the "everybody's a CEO" meme been more obvious than within the hallowed video chat grounds of Airtime. The vast majority of folks we've bumped into on the service are founder or executive-level startup employees. And, inevitably, when they ask us what we do, we are subjected to an impromptu pitch session on why their company is the Next Big Thing.

3. People You are Purposefully Not Facebook Friends With

Remember that dude you had a short but torrid Thing with back in college, and now sometimes you see each other in line for coffee and you make that unspoken "I'll pretend not to see you if you pretend not to see me" pact? Yeah, you're not Facebook friends with him for a reason, and you sure as hell don't want to run into him on Airtime.

4. The Lost, Lonely Men of the Internet

If this Businessweek piece is to be believed, a whole lot of dudes are looking at Airtime like it's a video chat version of OkCupid. We definitely had the experience of running into some flirty young men--one, in fact, who could barely bridle his joy as he blurted out: "You're a girl!"

5. Famous business leaders/investors/B-list celebrities

We all know Zuck uses it. So do Jessica Alba and Justin Bieber's manager, Scooter Braun, as well as Foursquare CEO Dennis Crowley and Zynga cofounder Mark Pincus, who users apparently confuse for each other. Assumedly Olivia Munn, Jim Carrey, Martha Stewart, Snoop Dogg and Joel McHale use it too, since they were present for its launch. Personally, we're still waiting for Ryan Gosling to catch on.

Even Zuck uses Airtime.

Forbes freaked out your Betabeat writers recently with an alarmist post about the way Sean & Shawn's new videochatting service, Airtime, monitors the tool for inappropriate content. Apparently Airtime takes pictures of you sporadically throughout your videochat sessions to make sure there's no sexy cam action going on (reserve that for "off the record" Gchats, plz).

But the post got us wondering: what are some other issues--privacy-related or not--that you should be wary of when using Airtime? Here are a few we came up with.

1) The automatic privacy settings mean that Airtime can publish to Facebook on your behalf. An item recently popped up in the news feed of The Observer's news editor that showed who people had met on Airtime. This may or may not be alarming to you, depending on how strict you are about your privacy settings.

But fret not, fellow Airtimers, you can opt out of this by going to your Airtime settings and unchecking "Publish Open Graph Actions."

2. Bumping into people you barely know/who are professional competitors/you made out with at a party once/ you are purposefully not friends with on Facebook. Take, for example, when we tried out Airtime on launch day and ran into Alyson Shontell of Business Insider. It was a lovely conversation but we were both forced to acknowledge that hey, we occasionally write things for competing websites. Also, she nexted us. But then it reconnected us! Which was really awkward! Luckily we then had the chance to next her, because, as she put it, "karma is a bitch on Airtime."

3. That whole nexting thing. It's not like Chatroulette, where nexting has no consequences. If you next someone, you probably know them, have known them or will know them--or else Airtime wouldn't have connected you in the first place. There comes a point in the conversation when you've run out of shared interests to talk about, an embarrassed lull creeps up, and you have to say something like, "I'm going to next you but not because I don't like you I think you're perfectly nice I just am done speaking with you now have a lovely day!" *next*

4. This is perhaps the worst unintended consequence of using Airtime: It automatically signs you into Facebook chat. So if you're using Airtime, and then you close out of it and go back to your Facebook page, you will still be signed in to Facebook chat. Personally, this reporter hates Facebook chat because the only people who are on it are people from high school you haven't talked to in years and who want to send you video chat requests when you literally haven't seen their faces since 2005.

Okay, you've all been warned.