Instead however I decided to do a bit of thinking concerning initiator builds. The current standard is to build initiators extremely tanky with a hint of support in order to survive the fight and contribute towards the team, a new thought has hit me recently however.
Specifically whether it is viable to forgo the support items in favour of damage items. More specifically creating a builds that still retains a lot of the common build's tankiness with items such as
Heart of Tarrasque, 
Vanguard or any other item that causes heroes to become hard to kill and to pair those items up with damage items which seem like they can fit in with this build, namely 
Heaven's Halberd, 
Abyssal Blade and whatever else works.Of course I am not suggesting to build as a semi-carry as attack speed can become a wasted stat if it does not contribute to your tankiness however I believe that as the first person to enter the fray the initiator can do more good by weakening the enemy carry severely or otherwise straight up murdering them.
I know that this won't work on some initiators (namely low commitment initiators) as well as the fact that anti-carries exist, most of the straight up anti-carries however tend not to be initiators (correct me if I'm wrong here). I want to know if my idea holds any weight or is it just a stupid result of me being a little sick.
Aside from pages, when I play an initiator hero I always rush either Vanguard (Clockwerk) or Blink Dagger (Tidehunter). Usually initiators get items such as Shivas Guard, as it suits the role of support AND initiator, giving a nice Aoe Nuke/Slow, as well as giving lots of armour.
My take on it is that different initiators go for different things. e.g. Clockwerk usually gets a Blademail as his core, and a Magnus can get a Vanguard as he doesn't need a blink dagger to fulfil his role, as he has Skewer, however Blink Dagger is still gotten on him usually so he can do a combo. Hoped this helped..?
EDIT: on the note of anti-carry, yes Razor is the best by far, draining attack and such. But consider Troll Warlord, and I know you haven't played Dota 1 so you wouldn't know what he's like, but he is also considered a great anti carry and carry, thriving mostly on attack speeed
RAZOR is the best anti carry i can think of, correct me if im wrong but he can go toe to toe with anyone
True, he's basically completely designed for that role.
Lane dominance? Check.
Damage Return? Check.
Cripple the carry? Check.
Execution ulti? Check.
The difference is that while Razor can simply make a carry feel absolutely useless he doesn't get in the fight first, and sometimes he doesn't want to kill the carry because of his massive damage buff. He can fight with pretty much any carry aside from maybe really long range carries like sniper, then again I'm not all that experienced with this game so don't ask me to correct something I might not be entirely sure on.
you're right - but at the end of the day your job is to make sure you win. as a support/carry/initiator - whatever, you just need to make sure the build is justified.
For example - Na'Vi during the mid/late game phase - would be a sange and yasha on CM and Tide. in itself is a crazy item for CM, but it works. her MS is nicely boosted, she now has the hp to chewup a few hits. + the maim she can land on top of her other slow disables, the Item isn't that expensive at 4.3k (it is built in parts, making it easier)
Things like HoT are hard to build because of the 3k+ investment for expensive "hard to gain money without dying" items.
I don't know who/what an anti-carry is - the only anti-carry I know, is your carry being stronger than their carry. if you're referring to disable's such as heaven's halberd - then if you can farm it, yes it is a good item. But for your role, there will be a lot of 'better' items. (blink dagger, force staff, mechanism,pipe, WARDS, etc) <-- if this is what your referring to, then play the role of support, you will never be able to farm up the money as an initiator support hero.