Ah, I understand what you concerned.
Do you worry about the density of the server increasing for BBSPINK bbs, perhaps?

If so, I believe that the worry is not necessary.

We, including Fox and I, have been operated many 2ch BBS servers
for over 5 years. And in the current 2ch tbanana servers, there are
high-capacity servers.

Always I and some good 2ch volunteers check the current board placements,
and almost of all tbanana servers are well-tuned.

You can see the current servers' and boards' placement information in my webpage:
http://mumumu.mu/serverlist.html
It includes bbspink servers/boards information, too.

And we've operated 1T HDD server, named oyster902 with Suma
for over 4 years. And its /home HDD is almost full, but the usage of
inodes is only 19%, as seen below:

% df -i /home
Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on
/dev/da0 1417529014 1227329072 76797622 94% 35531154 147703404 19% /home

I mean, I believe the 'out of inodes' does not occur in 2ch and bbspink servers
for usual. So, we can relax about it.