Hi there and thank you for inviting me to the panel @apm!
I'm mostly a lurker on social media and forums. Being a co-founder and in charge of design at Cake challenged me to become more open about sharing ideas and looking for feedback online. Whereas on Facebook and Instagram I share some ephemeral and light posts, here on Cake I prefer to post thoughtful and longer content.
It is often challenging to come up with conversations or even just to contribute by posting. Often I feel like I'm not an expert and have nothing to contribute. However, I've realized that by asking interesting questions of the experts we can all learn from them. After all, this is what learning is: asking questions we can't answer from people who can.
Reading comes easy to me, but I always wanted to start writing and that is where Cake has become indispensable. I found that by putting in a little bit of thought and effort in my posts, my writing improves and I'm getting closer to becoming a better writer.
To answer your question:
Best size to use for images? I know other platforms like Twitter will mess up your images if you don’t use their preferred size. I’m going to call out @Vilen in the hopes of getting some clarity on what works best on Cake.
We've built Cake to work with all image sizes. Once a photo is uploaded it is automatically resized to fit and displayed at proper resolution all devices. I recommend uploading the highest resolution image available, cropped at standard ratios: 3x2, 4x3, square etc. Landscape (orientation) images look better on desktop, while portrait look better on mobile. The only difficult images to display right are panoramas. They only look good when viewed in full screen (lightbox).