I think that if there is a recurring problem with long replies, and a lot of people don’t like it, then the host can put a cap on the word count, if it hasn’t been done already. I don’t think it would be wise to handcuff respondents by forcing them to make 2-3 sentence replies. I personally have found a lot of good information in, and enjoy reading some of the longer replies. This depends on who wrote the replies, of course. And if I don’t want to read it, I simply scroll down and move on to the next page. The irony here is that you aren’t forced to read the replies, yet you are trying to force how others reply. I’m not so sure that is a good approach. The repliers are only hurting their own reputation when they post long, meaningless comments. Doing so will make readers less likely to read what they have to say…simple supply and demand.

PS: Sorry for going over the 2-3 sentence reply limit.