Displaying PP on webpage is awesome. I am loving the direction the ranking system is headed ever since the introduction of PPv2. Well done <3
I still suggest replacing the in-game star system with the web one (which I assume matches PPv2 'level' system). I have resorted to doing it manually
It's a lot of hassle to do, the in-game collection system is quite poor (messed up when a map belongs in more than one collection, requires external tool to sort). Integrating the PPv2 star system would also allow updating the level display based on selected mods. Additionally it would help people find maps to play that match their skill level. Currently there's only 2 star difficulties: "5 stars" and "don't bother", I imagine it's the same for many people. PPv2 star system makes a lot more sense where it's an actual spectrum.
I remember when I started playing and reached the point where hard maps were too easy, but I couldn't find suitable maps as most 5 star ones were too hard. Now I can FC many 5 star maps, but I still have a hard time finding good maps to play as most 5 star maps are still either too easy or too hard.