Zugschef didn't cuss at you, but I will: you're a lying sack of shit.
Orly?
Basic Linguistics. Words are used to communicate thoughts and ideas and each person uses their own set of encoding. Often dubbed speech patterns when talking, they have a certain way to put their thoughts into words which also makes them predisposed to translate patterns into certain thoughts. Keep this in mind noob, because the 4 years of school you've attended hasn't thought you shit and you need to remember it so stop staring at the red bull can and pay attention.
The DMG stats all creatures created by "magical powers" do not give XP, we know for an absolute fact Undead and Constructs give XP and are meant to so the author cannot in fact mean that, as he goes on and into details he talks about abilities to summon monsters. This is something we can go with. When using more than a single sentence the author goes into details on summoning. Does he mean ability like the other 95% of uses of a printed concept or is he using quote on quote plain old english? I'm going with the latter.
And why? Summoning it's self is noted not to give XP as part of the rules
redundancy reminder thing D&D writers love to do. As they often print some sort of reminder to something it references. As two examples, MM1's Summon Monster entry says monsters summoned in this way don't give XP see DMG pg37 and the Glossary entry on the
Summoning subschool which also reminds you of such.
Calling has no such reminder.
Is it wrong to read it that way?
No.
Cocks up the ass aside, the FAQ is official rules and you're a nobody on the forums coming out of no where to insult me. It goes into exact detail and in one such example the spellcaster is down the spell slot, and the spell consumes XP to cast just like Gate, and both creatures award their full XP. The no contradiction in RAW is just bonus points because these forums are full of stupid people like you that cannot read headers and sour grape over nerfs. Oh, I'm sorry, I shouldn't use a complex term such as sour grapes around you and I must continue to talk down at your level. It actually doesn't matter what the DMG says, FAQ as a continually updated document on rule interpretation that explains specific examples which simply holds more priority on wither or not Planar Ally gives XP than the DMG does. And it is in those rules this line of posts operates in.
The Official Game Rules provided by Wizard of the Coast agrees that I am fairly close in how to interpret those couple of paragraphs. After all, for an absolute fact it says I'm not a lier on a Called creature gives full XP, making your claim the real lie. You on the other hand, can't even handle two words without bitching at people like you know what the hell you're talking about. So in lieu of that.
Fuck off noob.
I've already wasted more time with you than you will ever be worth.