I advise trying out the longspear, and you will see that the 245 length is deceptive. Pole stabs are maybe the shortest animation in the game. You hold the weapon in the middle and they have an effective reach that completely ignores a part of the end of the stab (it glances). Theres a portion of the stab that doesn't exist until some time after you release, so point blank you won't hit anything. If you jump back, aim to the side and have a slight delay you might hit someone up close, but you are at a severe disadvantage against anyone at this range.
They are good support weapons, but personally I just don't really like them. 1 attack direction makes you very predictable and vulnerable. You can't clutch the same as with any other weapon. If you see a long spear in a team fight then you should focus target him early on and put pressure on him. You will either force him back or at least keep him busy so he doesn't hurt your team mates. Just don't overextend and focus him too much, you just want to remove the threat. They are especially weak if you 2v1 him or more. You should know before going into a team fight if theres a pike or long spear you have to contend with, and decide if you fight then or not. You don't have to fight just because both teams have players there, you can always fall back and re group or fight where it benefits the team more. Thats just how I see it, don't let a long spear or pike dictate the fight but try not to overextend too. Maybe some others have better advice
Some players do very well solo with a long spear or pike, but generally they are just doing well despite the flaws of the weapon. Give them any other weapon and they will probably do even better
