[Frappé]

A few suggestions:
- An option to change your profile's username

The software embeds usernames into posts whenever people are quoted providing a limitation we are unable to easily get round. As has been shown with social networks like Twitter (as it was), it also causes a lot of confusion when people keep changing names regularly and others then try and register the old names to pretend to be someone else. That said, we understand there may be occasions when someone has made a mistake with a username and wants this corrected. In this case the best approach is to use the contact us feature in the top menu and just put in a polite request. Provided this is a one off thing and people are civil about it, we will always see what we can do when possible, though as this is a manual process due to the limits mentioned above and is especially problematic the more people have posted it may take some time to be done.

- Upping the file size limit for png files, most of the time I can't upload a 1920x1080 png file directly

We are looking at improvements for the built-in file uploader as it happens so the site is not then dependent upon third party sites being kept online all the time. However, and while this may not be the answer you want to hear, the example provided is actually something that should not be done. PNG is an image format intended for simpler graphics with large areas of block colours that have not already been through MPEG video compression, so is not ideal for the photo-realistic or already compressed images that usually go out on broadcast. Broadcast screencaptures should usually be done as JPEGs[*], with quality set to around 90. It's easy to forget if you're on a high speed connection yourself, but not everyone else browsing the site is on a fast connection and may often be looking at it on congested mobile phone connections or similar. At which point having lots of unnecessarily large images posted in PNG format (or animated GIFs, which is another one we have seen used sometimes) will provide them with a painful experience browsing the site and is not something we would encourage. Try to think of everyone!

- An option to toggle the "last visited" on the top of the page on and off

While we wouldn't be able to make this a toggleable option, if people prefer we can just get rid of the 'You last visited' message for everyone as this is just something that comes in the templating with MyBB. It's not something anyone has ever raised previously, but if there was a more general preference from everyone to not have that we can change this.

- Adding a sidebar with related posts and/or media like TV Forum used to have

Primarily we consider the forum a forum for discussion rather than a place for dropping videos and news links. We are always looking at new things we can introduce to the templates, but it would have to be something more nuanced than this in order to draw attention to the best that is going on the forum and not just show every video link that gets posted.

Hope this helps!


[*] Yes, I'm aware of WEBP, but explaining the intricacies of that would be an even bigger can of worms to open.