So why the disdain for Teleporters?

[EngeeMan]

I used to play TFC religiously, every day after school and on the weekends. I loved it and basically was my favorite game ever. Eventually though I grew tired of it and quit.

A few(?) years passed and just reading random posting about TFC brought up the mention of teleporters. Apparently I had stopped playing before these were added to the game. Also apparently they were disliked by a majority of the people who mentioned them.

Why is this? In a game where you could leap across the entire map in an instant or jump across huge stretches with just a few hops and wobbling of the mouse I don't see how a teleporter would affect movement at all.

I never experienced them in gameplay in TFC, but they seem to work fine in TF2. There's a cool down time, particles swirling around people who teleported so you know there's a tele around, and they are easy to destroy if they aren't hidden away well enough.

So why were they so bad in TFC?