I use my iPad, iPhone and laptop for the forum.
With my iPhone i use Tapatalk 99% of the time.
With my iPad I use Tapatalk at times, but mostly Safari now, getting the same experience and lay out as I do on my laptop.
I don't know what changed in the past year, but you can now upload pictures using the Safari browser just like you would on a PC or Mac, using the "advanced" feature. In the past if I wanted to upload a picture to a thread I had to use Tapatalk.
Edit your photo before uploading. If you took a vertical shot and it needs to be horizontal, rotate the picture in the iPhoto app, even if it displays correctly, then save.
After editing in the app I then use the app "Simple Resize" to resize the picture to something more manageable for uploading.
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note, I am using an iPad Air, if it makes a difference.