Why do people come here just to complain about how they'll never find someone?

No one wants to hear it. It isn't helping you attract anyone to pity yourself. It's just going to make you miserable and ruin your chances. Why do it? Does it honestly help you feel better to just drop in and say that because of X and Y that you'll die alone?

Some people just need to let things out. Some may be trying to get attention in some way, but others just want to let it out rather than holding it in.

It's not only here, people do that literally everywhere. Some complains are a good way to get advice to make some progress or change something to the better, if they don't, you should stop complaining because of you don't even want to change, you actually don't care and simply force others to lower themselves and praise you. Of course people could, or rather, SHOULD as for advice instead of complaining but some simply don't know how to ask for help and that's why it's good to tell them what are they doing wrong.

Some of them want pity and I guess hope someone might take interest in them in the way someone might take in an injured animal off the streets to care for it. Reality is though this only turns off most people. It irritates many people and makes them want to avoid you not get to know you. I don't find complaining about being alone in itself an issue, but I spend a lot of time around very miserable people. I know one girl who complains about it almost daily, but I try to help them with their issues where I can. Besides, I suppose it's probably more acceptable for women to do it anyways. I wouldn't mind trying to cheer one of these people up and make them happier, but with many of these people it's often a sign that they're a black hole of attention and nothing anyone does will ever be enough for them. So that's something to watch out for. Still, as I've said before I'd rather feel needed than simply tolerated.

I agree with pretty much everything that has been said so far. Basically, some people want some kind of satisfying feeling of having attention or pity, and sometimes they probably just really want help. I can say this as a person who sometimes complained about being forever alone. But, the reality is, there isn't any knight in shining armor that is going to just save you. I've met a few girls who complained about how everything sucked so often, and no matter how much I tried to comfort them or talk to them, nothing was ever enough. There are those who just really need to stop complaining if nobody can even help, and there are those who probably just need to let it out. It depends entirely. I guess my rant is over~

Are you kidding? With all the people we have here who are either depressed or suffering from anxiety, there's no way you aren't going to see people complain, and they honestly may NEED someplace to vent their frustrations because they don't have anywhere else to do it. Talking about your problems is healthy. Not doing anything about it is another issue entirely, but the act of talking about it is a form of release and is necessary for good psychological health. The more you discourage people from talking about their problems is the more you contribute to their poor mental state (causing the exact opposite effect from what you desired). You're also in a forum called "Serious Talk." I can't imagine why you'd come in here expecting anything different from what you got.

Finally, At least we got a handful of processing here

I will never find a waifu. I will die alone ;~;

a tidbit for all https://67.media.tumblr.com/fe2504c81991efc85579aafa642219da/tumblr_nyif22jib71ueayw6o1_400.png ;)