I've never, not once had that problem with the BF software. The problem is in your browser, or in your internet service provider. Or, it can be in your computer; insufficient RAM memory, malware, OS updates downloading in the background, virus software hogging resources, and other things can cause your browser to run slow and time out on the forum, at the bank, or wherever you happen to be logged on.
So instead of storming off in a snit, why don't you compose your post in Word and save it to your computer, then copy and paste to the forum?
This is of course assuming what you have to say is worth saving...
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Current bikes: Unknown year Specialized (rigid F & R) Hardrock, '80's era Cannondale police bike; '03 Schwinn mongrel MTB; '03 Specialized Hard Rock (the wife's)
Gone away: '97 Diamondback Topanga SE, '97 Giant ATX 840 project bike; '01 Giant TCR1 SL; and a truckload of miscellaneous bikes used up by the kids and grand-kids
Status quo is the mental bastion of the intellectually lethargic...