Anyone noticed an increase in spam after attending HostingCon?

In general - no.
From exhibitors (that I spoke to) no.
Pre-show-junk from exhibitors I didnt speak to - a little

If your spam is on the increase, it just means you've not lowered the threshold far enough on your filters :)

Anyone noticed an increase in spam after attending HostingCon?

I always say the best way to reduce your choice of spam is to not give it to anyone. :D

I have had one email address for over 10 years and I have never received one piece of spam (with no filters set). :agree:
I have also never given this email address to anyone, nor is it an easy email address to even guess. The only real bummer is that unless I email myself I won't even receive an email...... :crap:

I actually have seen a dramatic increase in spam in just the last two weeks.

Last week I got few spam emails.

Yes, recently I have also seen large number of spams just before few days.

Alot, but it has decreased now the conference has been over for awhile.