Thanks for your comments guys! I didn't mean to scary you about the forum stability after installing the blog mod. True, future forum upgradeability will be somewhat harder, but who knows what will bring us the future? At the moment, we are over a year or so behind with updates and the forum is working fine so far. So I think one more mod will definitely not kill me or this forum

In addition, I'm planning to drop the support of two of four existing styles (Hermes based styles), which should make the things much easier for me. It's a nightmare to keep updated all four styles. And because the number of people using other than default style is pretty low, I decided to keep only the two most used styles. People using Hermes styles will be switched to default style, sorry folks.
I personally think that personal Blogs started at RicohForum could be a useful thing? As for myself, I can start my own blog outside the RicohForum, but then it will be yet another place to visit and maintain. And I believe that Blog integrated into forum could make the things easier for people without personal webspace? And finally, it's hard to start new blog and make it visited by the internet community. I think it's depressing to start a new blog only to find that nobody reads it? This is why the major number of new blogs die soon after their start.
On the other hand, with blog integrated into forum, we could be sure that at least exiting (active) part of the RicohForum community may visit our blogs and eventually post a comment or two

After integration into forum, there will be a direct link in each user's profile (right under the Post count/Location info). So it will make it very easy for people to visit your blog right from reading a forum post.
It's up to you guys. If you think you will have a use for a personal blog, I can add it. Thanks to new auto installation procedure, installing/uninstalling new mods is much easier than before. Not entirely automatic, because I still need to perform some manual steps. But it's much easier than before.