I'd be amazed if anyone on tip.it gets over 60k slayer exp an hour.

Effigies used on slayer close the window for more effigies to be obtained through combat; hence being a waste of exp

 

Yes it is possible to obtain that insane amount of exp an hour with ZERO interference from other people (dagannoths etc) but it is EXTREMELY unrealistic, unless I'm missing something with how people do tasks these days.

I think fletching is a bad example of the point, since there *is* actually a benefit to 99 fletch (Prommy arrows), but as an example:

 

* The highest level tree is Grave Creeper (level 90)

* Choking ivy doesn't produce anything except the occasional bird's nest

** Birds nests are dropped by other trees

 

Taking that into account, there is surely no reason to train woodcutting beyond level 90 using ivy, apart from getting level 99 specifically to get a cape that you can show off to other people.

 

The question is: Is a perceived social 'need' to get a 99 skill a worthwhile excuse for getting 99? Not in my opinion.

I train 99s, not for a perceived social need, but because I eventually want maxed total level. Since I have pretty much everything practical done, it seems like the next logical step.