Disallow a user to create two topics with under 30-60 seconds in-between their creation date.

It is.

Then how are there still double-posts from time to time?

Because people wait more than 60 seconds or something like that.

The main question is: are double threads really such a big problem for an extra technical solution? Happens once a month or something like that. Rare enough to just have a mod close it.

A minute isn't enough in my opinion. Why not something like 5 min. or more?

It happens when people use the back button in their browser history after that time. Most browsers nowadays ask you if you want to re-submit the data. Either people don't understand that, don't care or just just have old browsers which don't ask before submitting the very same data a second time.

Would be pretty easy to fix. Actually I would only have to check for a duplicate topic in the right place (I already do but it's at the wrong place) but yes, not a huge problem.

To avoid recent SEO spams: Wouldn't it be a good idea to disallow posting links for new accounts? Let's say, the first 10 posts are not allowed to contain links to anything apart from unrealsoftware.de/*?

Yes, I already considered it. It's not happening too often so it's easy enough to just delete the stuff but if it continues/increases I will add additional protections and limitations.

Add button at each post to copy post, ready for quote when posting a reply. It's annoying when I want to quote multiple people (like in Get player count JSON) where I have to press "quote", copy-paste the contents, back, find another post, rinse and repeat.

http://www.cs2d.com/help.php?hookcat=all&hook=clientdata#hook lacks information about the mode parameter. I feel like this got deleted somehow because I remember it was there.

@ Masea: I believe the modes are here: https://www.cs2d.com/help.php?luacat=all&luacmd=reqcld#cmd

When you go to an older version of your link using web archive it says the same, so nothing was deleted.

@ Alpha Beta: Too right. But it would still be wise to put them in there too, or just reference the reqcld.

Lol, @ DC:, you can't tell people not to change their names just to keep the forum looks cool, don't be lazy man.

@ Xirot: DC just said his opinion about changing names only. He doesn't force anyone. I agree with him too.

@ Xirot: it was actually work to implement this name change restriction. I implemented it for reasons. Calling me lazy because I don't remove something that I want to have on this page it is utter bullshit and a cheap attempt to provoke me.

§5.1 - Show good behavior and simply don't be a stupid asshole

Also you're wrong with what you're saying. This is my website. If I don't want people to change their names all the time then I can enforce that rule. I still think it makes a lot of sense to have that rule.

@ Xirot: You must be an asshole judging and provoking the website creator like that.

@ The Dark Shadow: Dude, I am sorry but you also don't have the right to say "asshole" to that guy too.

Consider sending Strict-Transport-Security header when the site is visited under HTTPS so browsers can remember that the site should be visited under HTTPS, avoiding unnecessary redirect from http://www.unrealsoftware.de to https://www.unrealsoftware.de everytime.

API for retrieving basic info e.g username and profile picture.

Edit: Just found out Developer section, didn't check, my bad.

Regarding the servers posted in the U.S.G.N. site, I have found the way you check for a server to be quite ineffective.

How about this:

Ping a server every 30 seconds, if the server reports offline, ping it every 2 seconds for 10 seconds, if the server doesn't respond, wait another minute and try again, if the server still doesn't respond, remove it from the server list.