I think its good they scale down the photos for the thread, makes it easier to read it all.
I also like that you can click on the top and open up in a much bigger screen as thats a big help when trying to sex fish and see all their little hairs and stuff.
To upload to this forum I use windows paint to resize first and as long as I make the longest side 1200 to I think 1800? it will upload well. I tried with 2200 and plecoplanet upload spat it out.
When the photos were full size or too big, the post went out of size for the thread, it was really messy. Personally I think the size they are is ok plus you only need to click on the bar above photo for full size