diff --git a/ttyverse.pl b/ttyverse.pl
index 61118da..7e6b639 100755
--- a/ttyverse.pl
+++ b/ttyverse.pl
@@ -3199,7 +3199,7 @@ m#^/(un)?f(boost|a|av|ave|avorite|avourite)? ([zZ]?[a-zA-Z]?[0-9]+)$#) {
 		}
 		# we can't or user requested /ert /ort
 		$repost = "boost @" .
-			&descape($post->{'user'}->{'screen_name'}) .
+			&descape($post->{'user'}->{'acct'} || $post->{'user'}->{'screen_name'}) .
 			": " . &descape($post->{'text'});
 		if ($mode eq 'e') {
 			&add_history($repost);
@@ -3397,7 +3397,7 @@ m#^/(un)?f(boost|a|av|ave|avorite|avourite)? ([zZ]?[a-zA-Z]?[0-9]+)$#) {
 			print $stdout "-- no such post (yet?): $code\n";
 			return 0;
 		}
-		my $target = &descape($post->{'user'}->{'screen_name'});
+		my $target = &descape($post->{'user'}->{'acct'} || $post->{'user'}->{'screen_name'});
 		my $text = $_;
 		$_ = '@' . $target;
 		unless ($mode eq 'v') {
@@ -3411,7 +3411,7 @@ m#^/(un)?f(boost|a|av|ave|avorite|avourite)? ([zZ]?[a-zA-Z]?[0-9]+)$#) {
 		my %did_mentions = map { $_ => 1 } (lc($target));
 		my $reply_post = &descape($post->{'text'});
 
-		while($reply_post =~ s/\@(\w+)//) {
+		while($reply_post =~ s/\@(\w+(?:\@[\w.-]+)?)//) {
 			my $name = $1;
 			my $mame = lc($name); # preserve camel case
 			next if ($mame eq $whoami || $did_mentions{$mame}++);
@@ -4514,7 +4514,11 @@ sub update_effpause {
 # direct messages or search, because they pull from different buckets, and
 # their rate limits are roughly the same.
 				$effpause = 5*$rate_limit_rate;
-				# this will usually be 75s
+				# Cap refresh rate for fediverse servers (generous rate limits)
+				if ($effpause > 120) {
+					$effpause = 120;  # Maximum 2 minutes for fediverse
+				}
+				# this will usually be 75s (Twitter) or 120s (fediverse cap)
 # for lists, however, we have to drain the list bucket faster, so for every
 # list AFTER THE FIRST ONE we subscribe to, add rate_limit_rate to slow.
 # for search, it has 180 requests, so we don't care so much. if this
@@ -4563,6 +4567,15 @@ sub update_effpause {
 	# } else {
 	#	$rate_limit_next-- unless ($anonymous);
 	# }
+	
+	# Fediverse fallback: ensure auto-refresh works even if rate limiting fails
+	if (defined($pause) && $pause eq 'auto' && (!defined($effpause) || $effpause == 0)) {
+		$effpause = 120;  # 2 minutes - consistent with fediverse cap
+		print $stdout "-- using fallback refresh rate: $effpause seconds\n";
+	}
+	
+	# Debug: always show current effpause value
+	print $stdout "-- current effpause: " . (defined($effpause) ? $effpause : 'undefined') . " seconds\n" if ($verbose);
 }
 
 # streaming API support routines
@@ -5663,7 +5676,7 @@ sub standardpost {
 	my $ref = shift;
 	my $nocolour = shift;
 
-	my $sn = &descape($ref->{'user'}->{'screen_name'});
+	my $sn = &descape($ref->{'user'}->{'acct'} || $ref->{'user'}->{'screen_name'});
 	my $post = &descape($ref->{'text'});
 	
 	# Debug boost display
@@ -5776,8 +5789,8 @@ sub standardevent {
 	# ActivityPub streaming API messages
 
 	if (length($verb)) { # see below for server-level events
-		my $tar_sn = '@'.&descape($ref->{'target'}->{'screen_name'});
-		my $sou_sn = '@'.&descape($ref->{'source'}->{'screen_name'});
+		my $tar_sn = '@'.&descape($ref->{'target'}->{'acct'} || $ref->{'target'}->{'screen_name'});
+		my $sou_sn = '@'.&descape($ref->{'source'}->{'acct'} || $ref->{'source'}->{'screen_name'});
 		
 		my $tar_list_name = '';
 		my $tar_list_desc = '';
@@ -6123,7 +6136,7 @@ sub defaulthandle {
 	my $post_ref = shift;
 	my $class = shift;
 	my $dclass = ($verbose) ? "{$class,$post_ref->{'id_str'}} " :  '';
-	my $sn = &descape($post_ref->{'user'}->{'screen_name'});
+	my $sn = &descape($post_ref->{'user'}->{'acct'} || $post_ref->{'user'}->{'screen_name'});
 	my $post = &descape($post_ref->{'text'});
 	
 	# Debug: Check what data defaulthandle receives for boost posts
@@ -6174,7 +6187,7 @@ sub sendnotifies { # this is a default subroutine of a sort, right?
 	my $post_ref = shift;
 	my $class = shift;
 
-	my $sn = &descape($post_ref->{'user'}->{'screen_name'});
+	my $sn = &descape($post_ref->{'user'}->{'acct'} || $post_ref->{'user'}->{'screen_name'});
 	my $post = &descape($post_ref->{'text'});
 
 	# interactive? first time?
@@ -7599,14 +7612,11 @@ sub normalizejson {
 		$i->{'reblog'} = $rt;
 		
 		# Get original author and content
-		my $original_author = $rt->{'user'}->{'screen_name'} || 'unknown_user';
+		my $original_author = $rt->{'user'}->{'acct'} || $rt->{'user'}->{'screen_name'} || 'unknown_user';
 		my $content = $rt->{'text'} || '';
 		
 		# Get booster (who shared this)
-		my $booster = $i->{'user'}->{'screen_name'} || 'unknown_booster';
-		if (exists($i->{'user'}->{'acct'})) {
-			$booster = $i->{'user'}->{'acct'};
-		}
+		my $booster = $i->{'user'}->{'acct'} || $i->{'user'}->{'screen_name'} || 'unknown_booster';
 		
 		print $stdout "-- DEBUG: Boost - original: '$original_author', booster: '$booster', content: '$content'\n" if ($verbose);