Time Limit for Editing

[Horhey]

Why is there a time limit for editing a post?

[stroll]

I'd guess the time limit is so posters cannot keep changing the text hours or days later after others replied to it.

This looks like a rather large, distracting signature, compared to the few words posted. lol
"In order to keep signatures reasonable in size (to prevent them from overpowering the posts in a thread) the normally accepted criteria is that they should not be larger in total than 3 lines at normal (size 2) text size, or the equivalent (2 lines at size 3, 4 lines at size 1, etc.), including any spaces, etc.."

[SpaceCricket79]

Why is there a time limit for editing a post?

It prevents abuse. Posters could edit their posts indefinitely to avoid a moderator infraction, or to troll other members (such as by changing their post, then accusing someone who replied of having misquoted them, etc).